S. SornmaniMahidol University2018-10-122018-10-121984-12-01Southeast Asian Journal of Tropical Medicine and Public Health. Vol.15, No.4 (1984), 446-451003836192-s2.0-0021610694https://repository.li.mahidol.ac.th/handle/20.500.14594/30628Mahidol UniversityMedicineArticleSCOPUS