TY - BOOK ED - United States. ED - United States. TI - An analysis of the content of specialty practices and their service capacities: executive summary U1 - 610.69 23 PY - 1981/// CY - Maryland PB - U.S. Dept. of Health and Human Services KW - Medicine KW - Specialties and specialists KW - United States KW - Health planning N1 - DHHS Pub. No. (HRA) 81-649 ER -