共 50 条
- [35] MULTIHOSPITAL SYSTEMS IN THE UNITED-STATES - A GEOGRAPHICAL OVERVIEW SOCIAL SCIENCE & MEDICINE PART D-MEDICAL GEOGRAPHY, 1981, 15 (3D): : 353 - 359
- [36] DISTRIBUTION OF PHYSICIANS IN THE UNITED-STATES JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION, 1951, 145 (03): : 162 - 162
- [38] THE DISTRIBUTION OF POLIO IN THE UNITED-STATES JOURNAL OF PEDIATRICS, 1953, 43 (03): : 366 - 368
- [39] DISTRIBUTION OF DENTISTS IN THE UNITED-STATES JOURNAL OF THE AMERICAN DENTAL ASSOCIATION, 1949, 39 (04): : 489 - 492