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- [2] URBAN-RURAL VARIATIONS IN TUBERCULIN SENSITIVITY AMERICAN REVIEW OF RESPIRATORY DISEASE, 1961, 84 (05): : 669 - &
- [8] Urban-rural variations of medical care of children with diarrhea in Mexico SALUD PUBLICA DE MEXICO, 1996, 38 (03): : 157 - 166
- [9] Urban-rural variations in suicides and undetermined deaths in England and Wales JOURNAL OF PUBLIC HEALTH MEDICINE, 1998, 20 (03): : 261 - 267