TY - GEN AU - Edelman,D A AU - Kothenbeutel,R AU - Levinski,M J AU - Kelly,S E TI - Comparative trials of low-dose combined oral contraceptives SN - 0024-7758 PY - 1983///0729 KW - Adult KW - Contraceptives, Oral KW - adverse effects KW - Contraceptives, Oral, Combined KW - Drug Combinations KW - Ethinyl Estradiol KW - Ethinyl Estradiol-Norgestrel Combination KW - Female KW - Humans KW - Mestranol KW - Norethindrone KW - Norethindrone Acetate KW - Norgestrel KW - Pregnancy N1 - Publication Type: Comparative Study; Journal Article; Research Support, U.S. Gov't, Non-P.H.S ER -