title: Letter: Tubal pregnancy and failed sterilisation.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D011247:Pregnancy; D011274:Pregnancy, Tubal / Q000150:complications / Q000209:etiology*; D011275:Pregnancy, Unwanted; D013246:Sterilization, Tubal / Q000379:methods