T. UlmsawasdiMahidol University2018-04-192018-04-191976-12-01Journal of the Medical Association of Thailand. Vol.59, No.1 (1976), 1-5012522082-s2.0-0017261958https://repository.li.mahidol.ac.th/handle/20.500.14594/10899Mahidol UniversityMedicineArticleSCOPUS