{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,23]],"date-time":"2026-02-23T15:42:31Z","timestamp":1771861351753,"version":"3.50.1"},"reference-count":10,"publisher":"Springer Science and Business Media LLC","issue":"5026","license":[{"start":{"date-parts":[[1966,2,1]],"date-time":"1966-02-01T00:00:00Z","timestamp":-123552000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.springer.com\/tdm"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nature"],"published-print":{"date-parts":[[1966,2]]},"DOI":"10.1038\/209921b0","type":"journal-article","created":{"date-parts":[[2006,7,6]],"date-time":"2006-07-06T01:14:49Z","timestamp":1152148489000},"page":"921-922","source":"Crossref","is-referenced-by-count":122,"title":["Motor Unit in Old Age"],"prefix":"10.1038","volume":"209","author":[{"given":"E.","family":"GUTMANN","sequence":"first","affiliation":[]},{"given":"V.","family":"HANZL\u00cdKOV\u00c1","sequence":"additional","affiliation":[]}],"member":"297","reference":[{"key":"BF209921b0_CR1","volume-title":"Handbook of Aging and the Individual","author":"JW Magladery","year":"1959","unstructured":"Magladery, J. W., in Handbook of Aging and the Individual (Chicago, 1959)."},{"key":"BF209921b0_CR2","first-page":"209","volume-title":"Structure and Function of Muscle","author":"LJ Rubinstein","year":"1960","unstructured":"Rubinstein, L. J., in Structure and Function of Muscle, 3, 209 (1960)."},{"key":"BF209921b0_CR3","first-page":"353","volume":"21","author":"E Gutmann","year":"1962","unstructured":"Gutmann, E., Rev. Canad. Biol., 21, 353 (1962).","journal-title":"Rev. Canad. Biol."},{"key":"BF209921b0_CR4","first-page":"481","volume":"14","author":"I H\u00e1jek","year":"1965","unstructured":"H\u00e1jek, I., Gutmann, E., and Syrov\u0177, I., Physiol. Bohemoslov., 14, 481 (1965).","journal-title":"Physiol. Bohemoslov."},{"key":"BF209921b0_CR5","unstructured":"Brattgard, S. O., Edstr\u00f6m, J. E., and Hyd\u00e9n, H., Exp. Cell Res., suppl. 5, 185 (1958)."},{"key":"BF209921b0_CR6","first-page":"437","volume":"11","author":"E Grutmann","year":"1962","unstructured":"Grutmann, E., Jakoubek, B., Rohl\u00ed\u010dek, V., and \u0160kaloud, J., Physiol. Bohemoslov., 11, 437 (1962).","journal-title":"Physiol. Bohemoslov."},{"key":"BF209921b0_CR7","doi-asserted-by":"crossref","first-page":"88","DOI":"10.1159\/000211047","volume":"5","author":"Z Drahota","year":"1961","unstructured":"Drahota, Z., and Gutmann, E., Gerontologia, 5, 88 (1961).","journal-title":"Gerontologia"},{"key":"BF209921b0_CR8","first-page":"277","volume":"12","author":"J Zelen\u00e1","year":"1963","unstructured":"Zelen\u00e1, J., and Hn\u00edk, P., Physiol. Bohemoslov., 12, 277 (1963).","journal-title":"Physiol. Bohemoslov."},{"key":"BF209921b0_CR9","doi-asserted-by":"crossref","first-page":"12","DOI":"10.1159\/000211462","volume":"11","author":"E Gutmann","year":"1965","unstructured":"Gutmann, E., and Hanzl\u00edkov\u00e1, V., Gerontologia, 11, 12 (1965).","journal-title":"Gerontologia"},{"key":"BF209921b0_CR10","doi-asserted-by":"crossref","first-page":"219","DOI":"10.1111\/j.1748-1716.1954.tb01168.x","volume":"32","author":"F Buchthal","year":"1954","unstructured":"Buchthal, F., Pinelli, P., and Rosenfalck, P., Acta Physiol. Scand., 32, 219 (1954).","journal-title":"Acta Physiol. Scand."}],"container-title":["Nature"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.nature.com\/articles\/209921b0","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/www.nature.com\/articles\/209921b0.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/www.nature.com\/articles\/209921b0.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,12,1]],"date-time":"2021-12-01T22:46:46Z","timestamp":1638398806000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.nature.com\/articles\/209921b0"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1966,2]]},"references-count":10,"journal-issue":{"issue":"5026","published-print":{"date-parts":[[1966,2]]}},"alternative-id":["BF209921b0"],"URL":"https:\/\/doi.org\/10.1038\/209921b0","relation":{},"ISSN":["0028-0836","1476-4687"],"issn-type":[{"value":"0028-0836","type":"print"},{"value":"1476-4687","type":"electronic"}],"subject":[],"published":{"date-parts":[[1966,2]]}}}