title: Relationship of gallbladder disease to parity, obesity, and age.
mesh_terms: D000328:Adult; D000367:Age Factors; D002170:Canada; D005260:Female; D005705:Gallbladder Diseases / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D007198:Indians, North American; D008875:Middle Aged; D009765:Obesity / Q000150:complications*; D010298:Parity; D012044:Regression Analysis; D013223:Statistics as Topic; D014481:United States; D014837:Voluntary Health Agencies