Variations research. The physician perspective.
Steinberg
E P
EP
Johns Hopkins Program for Medical Technology and Practice Assessment, Johns Hopkins Medical Institutions, Baltimore, MD 21205.
D006302:Health Services Research / Q000379:methods*; D006801:Humans; D010818:Practice Patterns, Physicians' / Q000706:statistics & numerical data*; D017062:Small-Area Analysis; D014481:United States