{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,17]],"date-time":"2026-06-17T12:58:34Z","timestamp":1781701114290,"version":"3.54.5"},"reference-count":40,"publisher":"Norwegian Medical Association","issue":"19","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Tidsskr Nor Legeforen","Tidsskriftet"],"published-print":{"date-parts":[[2010,10,7]]},"DOI":"10.4045\/tidsskr.10.0079","type":"journal-article","created":{"date-parts":[[2010,10,12]],"date-time":"2010-10-12T03:43:19Z","timestamp":1286854999000},"page":"1921-4","source":"Crossref","is-referenced-by-count":0,"title":["Sentralnervesystemets mekanismer for smertehemming"],"prefix":"10.4045","volume":"130","author":[{"given":"Kristian Bernhard","family":"Nilsen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Magne Arve","family":"Flaten","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Knut","family":"Hagen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dagfinn","family":"Matre","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Trond","family":"Sand","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2479","reference":[{"key":"ref=1","doi-asserted-by":"crossref","unstructured":"Melzack R, Wall PD. Pain mechanisms: a new theory. Science 1965; 150: 971\u2009\u2013\u20099. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=5320816&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1126\/science.150.3699.971","DOI":"10.1126\/science.150.3699.971"},{"key":"ref=2","doi-asserted-by":"crossref","unstructured":"Fields HL, Basbaum AI, Heinricher MM. Central nervous system mechanisms of pain modulation. I:\u00a0McMahon SB, Koltzenburg M, red. Wall and Melzack\u2019s textbook of pain. 5. utg. London: Elsevier Churchill Livingstone, 2006: 125\u2009\u2013\u200942.","DOI":"10.1016\/B0-443-07287-6\/50012-6"},{"key":"ref=3","doi-asserted-by":"crossref","unstructured":"Fields H. State-dependent opioid control of pain. Nat Rev Neurosci 2004; 5: 565\u2009\u2013\u200975. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=15208698&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1038\/nrn1431","DOI":"10.1038\/nrn1431"},{"key":"ref=4","doi-asserted-by":"crossref","unstructured":"Yeomans DC, Clark FM, Paice JA et al. Antinociception induced by electrical stimulation of spinally projecting noradrenergic neurons in the A7 catecholamine cell group of the rat. Pain 1992; 48: 449\u2009\u2013\u200961. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=1594267&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1016\/0304-3959(92)90098-V","DOI":"10.1016\/0304-3959(92)90098-V"},{"key":"ref=5","doi-asserted-by":"crossref","unstructured":"Le Bars D. The whole body receptive field of dorsal horn multireceptive neurones. Brain Res Brain Res Rev 2002; 40: 29\u2009\u2013\u200944. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12589904&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1016\/S0165-0173(02)00186-8","DOI":"10.1016\/S0165-0173(02)00186-8"},{"key":"ref=6","doi-asserted-by":"crossref","unstructured":"Colloca L, Lopiano L, Lanotte M et al. Overt versus covert treatment for pain, anxiety, and Parkinson\u2019s disease. Lancet Neurol 2004; 3: 679\u2009\u2013\u200984. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=15488461&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1016\/S1474-4422(04)00908-1","DOI":"10.1016\/S1474-4422(04)00908-1"},{"key":"ref=7","doi-asserted-by":"crossref","unstructured":"Voudouris NJ, Peck CL, Coleman G. The role of conditioning and verbal expectancy in the placebo response. Pain 1990; 43: 121\u2009\u2013\u20098. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=2277714&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1016\/0304-3959(90)90057-K","DOI":"10.1016\/0304-3959(90)90057-K"},{"key":"ref=8","doi-asserted-by":"crossref","unstructured":"Wager TD, Rilling JK, Smith EE et al. Placebo-induced changes in FMRI in the anticipation and experience of pain. Science 2004; 303: 1162\u2009\u2013\u20097. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=14976306&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1126\/science.1093065","DOI":"10.1126\/science.1093065"},{"key":"ref=9","doi-asserted-by":"crossref","unstructured":"Matre D, Casey KL, Knardahl S. Placebo-induced changes in spinal cord pain processing. J Neurosci 2006; 26: 559\u2009\u2013\u200963. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=16407554&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1523\/JNEUROSCI.4218-05.2006","DOI":"10.1523\/JNEUROSCI.4218-05.2006"},{"key":"ref=10","doi-asserted-by":"crossref","unstructured":"Levine JD, Gordon NC, Fields HL. The mechanism of placebo analgesia. Lancet 1978; 2: 654\u2009\u2013\u20097. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=80579&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1016\/S0140-6736(78)92762-9","DOI":"10.1016\/S0140-6736(78)92762-9"},{"key":"ref=11","doi-asserted-by":"crossref","unstructured":"Eippert F, Bingel U, Schoell ED et al. Activation of\u00a0the opioidergic descending pain control system underlies placebo analgesia. Neuron 2009; 63: 533\u2009\u2013\u200943. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=19709634&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1016\/j.neuron.2009.07.014","DOI":"10.1016\/j.neuron.2009.07.014"},{"key":"ref=12","doi-asserted-by":"crossref","unstructured":"Kong J, Gollub RL, Polich G et al. A functional magnetic resonance imaging study on the neural mechanisms of hyperalgesic nocebo effect. J Neurosci 2008; 28: 13354\u2009\u2013\u200962. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=19052227&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1523\/JNEUROSCI.2944-08.2008","DOI":"10.1523\/JNEUROSCI.2944-08.2008"},{"key":"ref=13","doi-asserted-by":"crossref","unstructured":"Benedetti F, Amanzio M, Vighetti S et al. The biochemical and neuroendocrine bases of the hyperalgesic nocebo effect. J Neurosci 2006; 26: 12014\u2009\u2013\u200922. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=17108175&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1523\/JNEUROSCI.2947-06.2006","DOI":"10.1523\/JNEUROSCI.2947-06.2006"},{"key":"ref=14","doi-asserted-by":"crossref","unstructured":"Pich\u00e9 M, Arsenault M, Rainville P. Cerebral and cerebrospinal processes underlying counterirritation analgesia. J Neurosci 2009; 29: 14236\u2009\u2013\u200946. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=19906971&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1523\/JNEUROSCI.2341-09.2009","DOI":"10.1523\/JNEUROSCI.2341-09.2009"},{"key":"ref=15","doi-asserted-by":"crossref","unstructured":"Edwards RR, Ness TJ, Fillingim RB. Endogenous opioids, blood pressure, and diffuse noxious inhibitory controls: a preliminary study. Percept Mot Skills 2004; 99: 679\u2009\u2013\u200987. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=15560360&dopt=Abstract","DOI":"10.2466\/pms.99.2.679-687"},{"key":"ref=16","doi-asserted-by":"crossref","unstructured":"Pud D, Granovsky Y, Yarnitsky D. The methodology of experimentally induced diffuse noxious inhibitory control (DNIC)-like effect in humans. Pain 2009; 144: 16\u2009\u2013\u20099. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=19359095&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1016\/j.pain.2009.02.015","DOI":"10.1016\/j.pain.2009.02.015"},{"key":"ref=17","doi-asserted-by":"crossref","unstructured":"Zamir N, Segal M. Hypertension-induced analgesia: changes in pain sensitivity in experimental hypertensive rats. Brain Res 1979; 160: 170\u2009\u2013\u20093. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=214208&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1016\/0006-8993(79)90614-0","DOI":"10.1016\/0006-8993(79)90614-0"},{"key":"ref=18","doi-asserted-by":"crossref","unstructured":"Zamir N, Shuber E. Altered pain perception in hypertensive humans. Brain Res 1980; 201: 471\u2009\u2013\u20094. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=7417857&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1016\/0006-8993(80)91055-0","DOI":"10.1016\/0006-8993(80)91055-0"},{"key":"ref=19","doi-asserted-by":"crossref","unstructured":"Hagen K, Zwart JA, Holmen J et al. Does hypertension protect against chronic musculoskeletal complaints? The Nord-Tr\u00f8ndelag Health Study. Arch Intern Med 2005; 165: 916\u2009\u2013\u200922. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=15851644&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1001\/archinte.165.8.916","DOI":"10.1001\/archinte.165.8.916"},{"key":"ref=20","doi-asserted-by":"crossref","unstructured":"Falcone C, Auguadro C, Sconocchia R et al. Susceptibility to pain in hypertensive and normotensive patients with coronary artery disease: response to dental pulp stimulation. Hypertension 1997; 30: 1279\u2009\u2013\u200983. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=9369288&dopt=Abstract","DOI":"10.1161\/01.HYP.30.5.1279"},{"key":"ref=21","doi-asserted-by":"crossref","unstructured":"Lima D, Albino-Teixeira A, Tavares I. The caudal medullary ventrolateral reticular formation in nociceptive-cardiovascular integration. An experimental study in the rat. Exp Physiol 2002; 87: 267\u2009\u2013\u200974. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11856973&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1113\/eph8702354","DOI":"10.1113\/eph8702354"},{"key":"ref=22","doi-asserted-by":"crossref","unstructured":"Dowman R. Attentional set effects on spinal and supraspinal responses to pain. Psychophysiology 2001; 38: 451\u2009\u2013\u200964. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11352133&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1017\/S0048577201991395","DOI":"10.1111\/1469-8986.3830451"},{"key":"ref=23","doi-asserted-by":"crossref","unstructured":"Bushnell MC, Duncan GH, Hofbauer RK et al. Pain perception: is there a role for primary somatosensory cortex? Proc Natl Acad Sci U S A 1999; 96: 7705\u2009\u2013\u20099. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=10393884&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1073\/pnas.96.14.7705","DOI":"10.1073\/pnas.96.14.7705"},{"key":"ref=24","doi-asserted-by":"crossref","unstructured":"Lewis JW, Cannon JT, Liebeskind JC. Opioid and nonopioid mechanisms of stress analgesia. Science 1980; 208: 623\u2009\u2013\u20095. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=7367889&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1126\/science.7367889","DOI":"10.1126\/science.7367889"},{"key":"ref=25","doi-asserted-by":"crossref","unstructured":"King CD, Devine DP, Vierck CJ et al. Differential effects of stress on escape and reflex responses to nociceptive thermal stimuli in the rat. Brain Res 2003; 987: 214\u2009\u2013\u200922. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=14499966&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1016\/S0006-8993(03)03339-0","DOI":"10.1016\/S0006-8993(03)03339-0"},{"key":"ref=26","doi-asserted-by":"crossref","unstructured":"Khasar SG, Green PG, Levine JD. Repeated sound stress enhances inflammatory pain in the rat. Pain 2005; 116: 79\u2009\u2013\u200986. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=15936144&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1016\/j.pain.2005.03.040","DOI":"10.1016\/j.pain.2005.03.040"},{"key":"ref=27","doi-asserted-by":"crossref","unstructured":"Simkin P, Bolding A. Update on nonpharmacologic approaches to relieve labor pain and prevent suffering. J Midwifery Womens Health 2004; 49: 489\u2009\u2013\u2009504. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=15544978&dopt=Abstract","DOI":"10.1016\/j.jmwh.2004.07.007"},{"key":"ref=28","doi-asserted-by":"crossref","unstructured":"Koltyn KF. Analgesia following exercise: a review. Sports Med 2000; 29: 85\u2009\u2013\u200998. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=10701712&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.2165\/00007256-200029020-00002","DOI":"10.2165\/00007256-200029020-00002"},{"key":"ref=29","doi-asserted-by":"crossref","unstructured":"Tappe A, Klugmann M, Luo C et al. Synaptic scaffolding protein Homer1a protects against chronic inflammatory pain. Nat Med 2006; 12: 677\u2009\u2013\u200981. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=16715092&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1038\/nm1406","DOI":"10.1038\/nm1406"},{"key":"ref=30","doi-asserted-by":"crossref","unstructured":"Randich A, Roose MG, Gebhart GF. Characterization of antinociception produced by glutamate microinjection in the nucleus tractus solitarius and the nucleus reticularis ventralis. J Neurosci 1988; 8: 4675\u2009\u2013\u200984. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=2904491&dopt=Abstract","DOI":"10.1523\/JNEUROSCI.08-12-04675.1988"},{"key":"ref=31","doi-asserted-by":"crossref","unstructured":"Mason P. Contributions of the medullary raphe and ventromedial reticular region to pain modulation and other homeostatic functions. Annu Rev Neurosci 2001; 24: 737\u2009\u2013\u200977. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11520917&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1146\/annurev.neuro.24.1.737","DOI":"10.1146\/annurev.neuro.24.1.737"},{"key":"ref=32","doi-asserted-by":"crossref","unstructured":"Kosek E, Hansson P. Modulatory influence on somatosensory perception from vibration and heterotopic noxious conditioning stimulation (HNCS) in fibromyalgia patients and healthy subjects. Pain 1997; 70: 41\u2009\u2013\u200951. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=9106808&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1016\/S0304-3959(96)03295-2","DOI":"10.1016\/S0304-3959(96)03295-2"},{"key":"ref=33","doi-asserted-by":"crossref","unstructured":"Pielsticker A, Haag G, Zaudig M et al. Impairment of pain inhibition in chronic tension-type headache. Pain 2005; 118: 215\u2009\u2013\u200923. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=16202520&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1016\/j.pain.2005.08.019","DOI":"10.1016\/j.pain.2005.08.019"},{"key":"ref=34","doi-asserted-by":"crossref","unstructured":"de Tommaso M, Difruscolo O, Sardaro M et al. Effects of remote cutaneous pain on trigeminal laser-evoked potentials in migraine patients. J\u00a0Headache Pain 2007; 8: 167\u2009\u2013\u200974. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=17563842&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1007\/s10194-007-0385-8","DOI":"10.1007\/s10194-007-0385-8"},{"key":"ref=35","doi-asserted-by":"crossref","unstructured":"King CD, Wong F, Currie T et al. Deficiency in endogenous modulation of prolonged heat pain in\u00a0patients with irritable bowel syndrome and temporomandibular disorder. Pain 2009; 143: 172\u2009\u2013\u20098. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=19278784&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1016\/j.pain.2008.12.027","DOI":"10.1016\/j.pain.2008.12.027"},{"key":"ref=36","doi-asserted-by":"crossref","unstructured":"Yarnitsky D, Crispel Y, Eisenberg E et al. Prediction of chronic post-operative pain: pre-operative DNIC testing identifies patients at risk. Pain 2008; 138: 22\u2009\u2013\u20098. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=18079062&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1016\/j.pain.2007.10.033","DOI":"10.1016\/j.pain.2007.10.033"},{"key":"ref=37","doi-asserted-by":"crossref","unstructured":"Kosek E, Ordeberg G. Abnormalities of somatosensory perception in patients with painful osteoarthritis normalize following successful treatment. Eur J Pain 2000; 4: 229\u2009\u2013\u200938. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=10985866&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1053\/eujp.2000.0175","DOI":"10.1053\/eujp.2000.0175"},{"key":"ref=38","doi-asserted-by":"crossref","unstructured":"Perrotta A, Serrao M, Sandrini G et al. Sensitisation of spinal cord pain processing in medication overuse headache involves supraspinal pain control. Cephalalgia 2009; e-publisert 10.7.2009.","DOI":"10.1111\/j.1468-2982.2009.01914.x"},{"key":"ref=39","doi-asserted-by":"crossref","unstructured":"Duschek S, Dietel A, Schandry R et al. Increased sensitivity to heat pain in chronic low blood pressure. Eur J Pain 2009; 13: 28\u2009\u2013\u200934. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=18396077&dopt=Abstract, Crossref: http:\/\/dx.doi.org\/10.1016\/j.ejpain.2008.02.007","DOI":"10.1016\/j.ejpain.2008.02.007"},{"key":"ref=40","doi-asserted-by":"crossref","unstructured":"Furman E, Jasinevicius TR, Bissada NF et al. Virtual reality distraction for pain control during periodontal scaling and root planing procedures. J\u00a0Am Dent Assoc 2009; 140: 1508\u2009\u2013\u200916. PubMed: http:\/\/www.ncbi.nlm.nih.gov\/entrez\/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=19955069&dopt=Abstract","DOI":"10.14219\/jada.archive.2009.0102"}],"container-title":["Tidsskrift for Den norske legeforening"],"original-title":[],"language":"no","deposited":{"date-parts":[[2026,6,17]],"date-time":"2026-06-17T12:06:32Z","timestamp":1781697992000},"score":1,"resource":{"primary":{"URL":"https:\/\/tidsskriftet.no\/2010\/10\/oversiktsartikkel\/sentralnervesystemets-mekanismer-smertehemming"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2010,10,7]]},"references-count":40,"journal-issue":{"issue":"19","published-print":{"date-parts":[[2010,10,7]]}},"URL":"https:\/\/doi.org\/10.4045\/tidsskr.10.0079","relation":{},"ISSN":["0029-2001","0807-7096"],"issn-type":[{"value":"0029-2001","type":"print"},{"value":"0807-7096","type":"electronic"}],"subject":[],"published":{"date-parts":[[2010,10,7]]}}}