3[2]Barrows,H.S.(1986)A taxonomy of problem-based learning methods[J].Med Educ,20,481-486.
4[3]Duch BJ.Models for problem-based instruction in undergraduate course.In:Duch BJ,Gorh SE,Allen DE,eds.The power of problem-based learning[B].Virginia:Stylus Publishing,2001,39-45.
5[4]Savery JR,Duffy TM.Problem based learning:An instructional model and its constructivist framework[J].Educ Technol,1995,35(5):31-37.
6[5]Balslev T,de Grave W S,Muijtjens A M,et al.Comparison of text and video cases in a postgraduate problem-based learning format[J].Med Educ 2005; 39:1086-1092.
7[6]Kamin C,O'Sullivan P,Deterding R,et al.A comparison of critical thinking in groups of third-year medical students in text,video,and virtual PBL case modalities[J].Acad Med,2003;78:204-211.
8[7]Camp G.Problem-Based Learning:A Paradigm Shift or a Passing Fad[J].Medical Education Online1996,(1):2.
9[8]Eshach H,Biterman H.From case-cased reasoning to problem-based learning[J].Acad Med,2003,78(5):491-496.
10[9]Finucane PM,Johnson SM,Prideaux DJ.Problem-based learning:its rationale and efficacy[J].Med J of Aust,1998;168:445-448.