W. D. SawyerC. ThongthaiP. TapchaisriMahidol University2018-03-222018-03-221973-12-01Journal of the Medical Association of Thailand. Vol.56, No.7 (1973), 404-416012522082-s2.0-0015904779https://repository.li.mahidol.ac.th/handle/20.500.14594/10174Mahidol UniversityMedicineArticleSCOPUS