S. PhanichphantP. MekswasdiJ. CharuvichitratanaMahidol University2018-10-122018-10-121985-12-01Southeast Asian Journal of Tropical Medicine and Public Health. Vol.16, No.2 (1985), 280-284003836192-s2.0-0022410859https://repository.li.mahidol.ac.th/handle/20.500.14594/30848Mahidol UniversityMedicineArticleSCOPUS