title: Ectopic pregnancy by transmigration of sperm after sterilisation with Hulka-Clemens clips.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D011247:Pregnancy; D011274:Pregnancy, Tubal / Q000209:etiology*; D013083:Sperm Transport; D013246:Sterilization, Tubal / Q000009:adverse effects* / Q000295:instrumentation