Changing trends in mortality and morbidity from abortion in Singapore (1964 to 1970).
D000029:Abortion, Legal; D000031:Abortion, Septic / Q000453:epidemiology*; D000022:Abortion, Spontaneous / Q000453:epidemiology / Q000401:mortality*; D001723:Birth Rate; D005260:Female; D006801:Humans; D011247:Pregnancy; D012846:Singapore; D013997:Time Factors