title: [Ectopic pregnancy in the Balkashin district hospital in the Akmolinsk Region during 4 years (1956-1959)].
mesh_terms: D001699:Biometry; D005260:Female; D006767:Hospitals, District; D006801:Humans; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000706:statistics & numerical data*
keywords: PREGNANCY, ECTOPIC/statistics