{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,8]],"date-time":"2026-02-08T01:44:55Z","timestamp":1770515095479,"version":"3.49.0"},"reference-count":5,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2009,12]]},"DOI":"10.1097\/ftd.0b013e3181c1082a","type":"journal-article","created":{"date-parts":[[2017,10,13]],"date-time":"2017-10-13T16:41:58Z","timestamp":1507912918000},"page":"776-778","source":"Crossref","is-referenced-by-count":29,"title":["Anomalous Observations of Codeine in Patients on Morphine"],"prefix":"10.1097","volume":"31","author":[{"given":"Robert","family":"West","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bridgit","family":"Crews","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Charles","family":"Mikel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Perla","family":"Almazan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sergey","family":"Latyshev","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amadeo","family":"Pesce","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cameron","family":"West","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"276","reference":[{"key":"R1-18-20210129","doi-asserted-by":"crossref","first-page":"431","DOI":"10.36076\/ppj.2004\/7\/431","article-title":"Patterns of illicit drug use and opioid abuse in patients with chronic pain at initial evaluation: a prospective observational study.","volume":"7","author":"Manchikanti","year":"2004","journal-title":"Pain Physician"},{"key":"R2-18-20210129","first-page":"123","article-title":"Pampati, et al. Does random urine drug testing reduce illicit drug use in chronic pain patients receiving opioids?","volume":"9","author":"Manchikanti","year":"2006","journal-title":"Pain Physician"},{"key":"R5-18-20210129","doi-asserted-by":"crossref","first-page":"180","DOI":"10.1007\/BF01945461","article-title":"New observations in the metabolism of morphine. The formation of codeine from morphine in man.","volume":"29","author":"Boerner","year":"1973","journal-title":"Cell Mol Life Sci"},{"key":"R6-18-20210129","doi-asserted-by":"crossref","first-page":"201","DOI":"10.1016\/S0022-3565(25)30046-7","article-title":"Urinary excretion of morphine and its metabolites in morphine-dependent subjects.","volume":"192","author":"Yeh","year":"1975","journal-title":"Am Soc Pharmacol Exp Ther"},{"key":"R8-18-20210129","doi-asserted-by":"crossref","first-page":"4967","DOI":"10.1021\/ac070054s","article-title":"Systematic comparison of bias and precision data obtained with multiple point and 1 point calibration in 6 validated multi-analyte assays for quantification of drugs in human plasma.","volume":"79","author":"Peters","year":"2007","journal-title":"Anal Chem"}],"container-title":["Therapeutic Drug Monitoring"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.lww.com\/10.1097\/FTD.0b013e3181c1082a","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,6,26]],"date-time":"2025-06-26T13:35:50Z","timestamp":1750944950000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.lww.com\/00007691-200912000-00018"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,12]]},"references-count":5,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2009]]}},"URL":"https:\/\/doi.org\/10.1097\/ftd.0b013e3181c1082a","relation":{},"ISSN":["0163-4356"],"issn-type":[{"value":"0163-4356","type":"print"}],"subject":[],"published":{"date-parts":[[2009,12]]}}}