2Alexandre BS.The use of multiple tools for teachingmedical biochemistry[J].Adv Physiol Educ,2008,32:38-46.
3Prince KJAH.General competencies of problem-basedlearning(PBL)and non-PBL graduates[J].Med Educ,2005,39:394-401.
4Stevenson FT.Paired basic science and clinical problem-based learning faculty teaching side by side:do students evaluatethem differently?[J].Med Educ,2005,39:194-201.
5Kwan CY.Problem-based learning and teaching of medicalpharmacology[J].Naunyn-Schmiedeberg's Arch Pharmacol,2002,366:10-17.
6Kanfman DM.Problem-based learning-time to step back?[J].Med Edue,2000,34:509-511.
