Kongkiat KulkantrakornSomchai Bovornkitti2011-02-222011-02-222010-03-102010-03-10Thammasat Medical Journal - ธรรมศาสตร์เวชสาร; Vol.8 No.4 October-December 2008; 497http://imsear.searo.who.int/handle/123456789/132873en-USFaculty of Medicine, Thammasat University, Bangkok, ThailandMiscellaneous