Assoc. Prof. Preecha Wanichsetakul, Dean of Faculty of Medicine, Thammasat University welcomed Dr. Marijke Kruithof, Dr. Emmaline Brouwer and Dr. Mohammed Meziani on an occasion of giving special workshop on “Problem-based-learning” during September 28th – 30th, 2015 at the Faculty of Medicine, Thammasat University.