A. LeelarasameeS. NimmannitS. Na NakornN. AswapokeeP. AswapokeeY. BenjasuratwongMahidol University2018-06-012018-06-011978-12-01Southeast Asian Journal of Tropical Medicine and Public Health. Vol.9, No.4 (1978), 539-542003836192-s2.0-0018251551https://repository.li.mahidol.ac.th/handle/20.500.14594/13090Mahidol UniversityMedicineArticleSCOPUS