{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,3]],"date-time":"2026-05-03T10:10:26Z","timestamp":1777803026810,"version":"3.51.4"},"reference-count":24,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2009,6,12]],"date-time":"2009-06-12T00:00:00Z","timestamp":1244764800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Child Neurol"],"published-print":{"date-parts":[[2010,2]]},"abstract":"<jats:p>It has been known for many years that vitamin B12 deficiency can cause neurologic problems. One of these problems is involuntary movements that can appear both before and after the initiation of vitamin B12 treatment. Here, we report 3 infants who developed movement disorder during vitamin B12 administration. The movement disorder consisted of a combination of tremor and myoclonus affecting face, tongue, and limbs. Because of the severity of the symptoms, they all needed symptomatic treatment. In 2 of them, the involuntary movements resolved with clonazepam. The involuntary movements in the other patient were successfully treated with piracetam.<\/jats:p>","DOI":"10.1177\/0883073809333528","type":"journal-article","created":{"date-parts":[[2009,6,12]],"date-time":"2009-06-12T22:25:05Z","timestamp":1244845505000},"page":"227-230","source":"Crossref","is-referenced-by-count":22,"title":["Involuntary Movements During Vitamin B12 Treatment"],"prefix":"10.1177","volume":"25","author":[{"given":"\u00d6zlem","family":"\u00d6zdemir","sequence":"first","affiliation":[{"name":"Department of Pediatric Neurology, Uludag University, Medical Faculty, Bursa, Turkey,"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Birol","family":"Baytan","sequence":"additional","affiliation":[{"name":"Department of Pediatric Hematology, Uludag University, Medical Faculty, Bursa, Turkey,"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adalet Meral","family":"Gunes","sequence":"additional","affiliation":[{"name":"Department of Pediatric Hematology Uludag University, Medical Faculty, Bursa, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mehmet","family":"Okan","sequence":"additional","affiliation":[{"name":"Department of Pediatric Neurology, Uludag University, Medical Faculty, Bursa, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2009,6,12]]},"reference":[{"key":"bibr-0","doi-asserted-by":"publisher","DOI":"10.1146\/annurev.nutr.24.012003.132440"},{"key":"bibr-1","doi-asserted-by":"publisher","DOI":"10.1136\/adc.2004.061929"},{"key":"bibr-2","unstructured":"Silverman LB, Sallan S. Diagnosis of vitamin B12 deficiency. In: Nathan DG, Oski FA, eds. Hematology of Infancy and Childhood. 6th ed. Philadelphia, PA: WB Saunders, Inc; 2003:429-438."},{"key":"bibr-3","doi-asserted-by":"publisher","DOI":"10.1080\/08880010802016789"},{"key":"bibr-4","doi-asserted-by":"publisher","DOI":"10.1097\/01.PCC.0000167565.30084.84"},{"key":"bibr-5","doi-asserted-by":"publisher","DOI":"10.1542\/peds.99.2.255"},{"key":"bibr-6","doi-asserted-by":"publisher","DOI":"10.1097\/PEC.0b013e318180ff32"},{"key":"bibr-7","doi-asserted-by":"publisher","DOI":"10.1002\/mds.870120108"},{"key":"bibr-8","doi-asserted-by":"publisher","DOI":"10.1016\/S0887-8994(01)00289-2"},{"key":"bibr-9","doi-asserted-by":"publisher","DOI":"10.1016\/j.seizure.2006.10.016"},{"key":"bibr-10","unstructured":"Hamosh A., Johnston MV, Valle D. Non-ketotic hyperglycinemia. In: Scriver CR , Beaudet AL, Sly WS, Valle D, eds. The Metabolic and Molecular Bases of Inherited Disease. 7th ed. 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