title: [Risk factors].
authors: Manami
authors: M
authors: Inoue
mesh_terms: D017677:Age Distribution; D005260:Female; D005706:Gallbladder Neoplasms / Q000453:epidemiology* / Q000209:etiology; D042882:Gallstones / Q000150:complications; D006801:Humans; D008297:Male; D009765:Obesity / Q000150:complications; D012307:Risk Factors; D012727:Sex Characteristics