"Health Surveys United States." . . . "Office visits to dermatologists National Ambulatory Medical Care Survey, United States, 1989-90"@en . . . . . "Statistics"@en . "Office visits to dermatologists, National Ambulatory Medical Care Survey, 1989/90 [medicine, specialists, physicians, United States]"@en . . . . . . . . . "Office visits to dermatologists : National Hospital Ambulatory Medical Care Survey, United States, 1989-90"@en . "Office visits to dermatologists : National Ambulatory Medical Care Survey, United States, 1989-90"@en . . . . . . . . . . . . . "Office Visits United States Statistics." . . "Physicians utilization United States Statistics." . . "Skin Diseases epidemiology United States Statistics." . .