R. BuriMahidol University2018-10-122018-10-121982-12-01Public Health Reviews. Vol.10, No.3-4 (1982), 223-227030104222-s2.0-0020410404https://repository.li.mahidol.ac.th/handle/20.500.14594/30342Mahidol UniversityMedicineArticleSCOPUS