Aroonlug LulitanondAroonwadee ChanawongPipat SribenjaluxNipada KlangjatturatKamolnate Pradudchon2011-02-202011-02-202010-01-082010-01-08Journal of Medical Technology and Physical Therapy; Volume 20 Number 1, January - April 2008http://imsear.searo.who.int/handle/123456789/130851see pdf of the full texten-USKhon Kaen UniversityORIGINAL ARTICLE