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个人简介
Dr. Walker’s research involves studies of drug utilization and the intended and unintended effects of pharmaceuticals and medical procedures. Essentially all his work is done in collaboration with doctoral students in the pharmacoepidemiology program.
Recently completed studies include an evaluation of the determinants of discontinuation of lipid lowering therapy in two HMOs. Patients’ persistence on therapy was much poorer than had been suggested by clinical trial results. Earlier work on medical devices included an examination of the risks, benefits, and costs of an implanted occlusive device as an alternative to surgical closure of patent ductus arteriosus. The occluder proved to be more costly, less effective, and more burdened with unwanted outcomes than surgery.
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