P. ChiewsilpMahidol University2018-06-012018-06-011979-12-01Southeast Asian Journal of Tropical Medicine and Public Health. Vol.10, No.2 (1979), 191-192003836192-s2.0-0018621555https://repository.li.mahidol.ac.th/handle/20.500.14594/13212Mahidol UniversityMedicineArticleSCOPUS