Liyanage, I., Pathirana, A.C.A., Wickramasinghe, W.A.K.K., Karunathilake, I.M & Olupeliyawa, A (2008) Problem Based Learning to Train Medical Students; A Comparison between Two Medical Schools, 40th APACPH conference, 7-9^th November 2008, Kuala Lumpur, Malaysia.