Ectopic pregnancies and spontaneous abortions in New York City:  incidence and characteristics.
D000028:Abortion, Induced / Q000706:statistics & numerical data*; D000022:Abortion, Spontaneous; D001699:Biometry; D005260:Female; D006801:Humans; D015994:Incidence; D009519:New York City; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000706:statistics & numerical data*
ABORTION/statistics; PREGNANCY, ECTOPIC/statistics