title: An observational study goes where randomized clinical trials have not.
authors.affiliation: Health economist with the Boston VA Healthcare System, and associate professor at Boston University, School of Medicine and School of Public Health, Boston, Massachusetts.
authors.forename: Austin B
authors.initials: AB
authors.lastname: Frakt
mesh_terms: D015982:Bias; D003924:Diabetes Mellitus, Type 2 / Q000188:drug therapy*; D005500:Follow-Up Studies; D006801:Humans; D007004:Hypoglycemic Agents / Q000627:therapeutic use*; D064887:Observational Studies as Topic; D010818:Practice Patterns, Physicians'; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D013453:Sulfonylurea Compounds / Q000627:therapeutic use*; D045162:Thiazolidinediones / Q000627:therapeutic use*
chemical_list: D007004:Hypoglycemic Agents; D013453:Sulfonylurea Compounds; D045162:Thiazolidinediones