title: Ectopic pregnancy in a rural population with a high twinning rate.
authors: Awojobi Clinic Eruwa, Eruwa, Oyo State, Nigeria. oluyombo@steineng.net
authors: O A
authors: OA
authors: Awojobi
authors: S
authors: S
authors: Ogunsina
authors: F
authors: F
authors: Adekola
mesh_terms: D005260:Female; D006801:Humans; D015994:Incidence; D008499:Medical Records; D009549:Nigeria / Q000453:epidemiology; D010298:Parity; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000453:epidemiology* / Q000209:etiology / Q000473:pathology; D012189:Retrospective Studies; D012307:Risk Factors; D012422:Rupture, Spontaneous; D012423:Rural Health; D014427:Twins / Q000706:statistics & numerical data*