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- [22] Risk factors for ectopic pregnancy: A case-control study AUSTRALIAN & NEW ZEALAND JOURNAL OF OBSTETRICS & GYNAECOLOGY, 2006, 46 (06): : 521 - 527
- [27] Risk factors for Japanese encephalitis: a case-control study EPIDEMIOLOGY AND INFECTION, 2010, 138 (09): : 1292 - 1297