title: Study design in perinatal medicine.
mesh_terms: D000230:Adenocarcinoma / Q000139:chemically induced*; D003430:Cross-Sectional Studies; D004054:Diethylstilbestrol / Q000009:adverse effects*; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D010500:Perinatology; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D012107:Research Design; D014625:Vaginal Neoplasms / Q000139:chemically induced*
chemical_list: D004054:Diethylstilbestrol