7Newman MJ.Problem Based Learning:an introduction and overview of the key features of the approach[J].J Vet Med Educ,2005,32(1):12-20.
8Taylor D,Miflin B.Problem-based learning:where are we now?[J],Med Teach,2008,30(8):742-763.
9TaylorD, Miflin B. Problem-based learning: where are we now [J].MedTeach,2008,30(8):742-763.
10BosseHM,Huwendiek S,Skelin S,et al. Interactive film scenes for tutortraining in problem based learning (PBL) :dealing with difficult situations[J]. BMC Med Educ,2010,10(1):52.
