7MCPANLAND M,NOBLE LM,LIVINGSTON G,et al.The effectiveness of problem-based learning compared to traditional teaching in undergraduate psychiatry[J].Med Educ,2004,38(8):859-867.
8BARROWS HS.A taxonomy of problem-based learning methods[J].Med Educ,1986,20(6):481-486.
9LANGELOTZ C,JUNGHANS T,GUNTHER N,et al.Problem-based learning for surgery.Increased motivation with less teaching personal[J].Chirurg,2005,76(5):481-486.
10DOLMANS DH,DE GRAVE W,WOLFHAGEN IH,et al.Problem-based learning:future challenges for educational practice and research[J].Med Educ,2005,39(7):732-741.