AU - Lasco A, Catalano A, Benvenga S TI - Improvement of primary dysmenorrhea caused by a single oral dose of vitamin d: Results of a randomized, double-blind, placebo-controlled study PT - JOUR DP - 2012 TA - Archives of Internal Medicine pages = {366-367}, VI - 172 IP - 4 AID - 10.1001/archinternmed.2011.715 [doi] 4100 - http://dx.doi.org/10.1001/archinternmed.2011.715 SO - Archives of Internal Medicine February 27, 2012 172(4):366