Somjit Kraisi2011-02-222011-02-222010-03-102010-03-10Thammasat Medical Journal - ธรรมศาสตร์เวชสาร; Vol.9 No.1 January-March 2009; 56http://imsear.searo.who.int/handle/123456789/132891en-USFaculty of Medicine, Thammasat University, Bangkok, ThailandMiscellaneous