Urbach, D R Association of perforation of the appendix with female tubal infertility. [electronic resource] - American journal of epidemiology Mar 2001 - 566-71 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0002-9262 Standard No.: 10.1093/aje/153.6.566 doi Subjects--Topical Terms: AdultBiasCase-Control StudiesChi-Square DistributionFemaleHumansInfertility, Female--epidemiologyIntestinal Perforation--complicationsLogistic ModelsOntario--epidemiologyPregnancyPrevalenceRisk FactorsSurveys and Questionnaires