J. KarbwangD. J. BackD. BunnagA. M. BreckenridgeMahidol University2018-06-142018-06-141988-01-01Southeast Asian Journal of Tropical Medicine and Public Health. Vol.19, No.2 (1988), 235-241003836192-s2.0-0023761345https://repository.li.mahidol.ac.th/handle/123456789/15659Mahidol UniversityMedicineArticleSCOPUS