RT Journal Article SR Electronic T1 Effects of oral contraceptives and pregnancy on thyroid function JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 882 OP 886 VO 99 IS 18 A1 D. L. Schatz A1 H. C. Palter A1 C. S. Russell YR 1968 UL http://www.cmaj.ca/content/99/18/882.abstract