title: Ancillary production and the size of physicians' practice.
mesh_terms: D019411:Clinical Laboratory Techniques; D003191:Comprehensive Health Care; D005194:Family Practice; D013502:General Surgery; D006123:Group Practice; D006801:Humans; D007182:Income; D008511:Medicine; D011331:Private Practice; D011859:Radiography; D013038:Specialization