title: Correlation and causation in epidemiology.
mesh_terms: D000022:Abortion, Spontaneous / Q000209:etiology; D004813:Epidemiology; D005260:Female; D006801:Humans; D011247:Pregnancy; D011336:Probability; D012044:Regression Analysis; D002583:Uterine Cervical Neoplasms / Q000150:complications