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机译:Glucosamine and lower mortality and cancer incidence: Selection bias in the observational studies
Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's;
Centre for Clinical Epidemiology,Lady Davis Institute, Jewish General Hospital;
cohort studies; collider stratification bias; epidemiologic methods; osteoarthritis treatment; prevalent cohort; real‐world evidence;