RT Journal Article SR Electronic T1 The Vitamins and Sex Hormones Concerned in Reproduction JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 245 OP 252 VO 8 IS 4 A1 McCullagh, D. Roy YR 1941 UL http://www.ccjm.org/content/8/4/245.abstract AB