The use of norethynodrel in certain reproductive problems.
D000028:Abortion, Induced / Q000517:prevention & control*; D000022:Abortion, Spontaneous; D005260:Female; D006801:Humans; D009641:Norethynodrel; D011247:Pregnancy; D012098:Reproduction
D009641:Norethynodrel
ABORTION/prevention and control