Yaowapa Kongmun. 2002. Factors associated with peptic ulcer in the elderly. Field of Study Epidemiology, Mahidol University;
Yaowapa Kongmun. (2002) Factors associated with peptic ulcer in the elderly . Mahidol University/Bangkok.
Yaowapa Kongmun. Factors associated with peptic ulcer in the elderly. . Bangkok:Mahidol University, 2002.
Yaowapa Kongmun. (2002) Factors associated with peptic ulcer in the elderly . Mahidol University/Bangkok.