2Donner RS,Bickley H. Problem based learning in American medical education:an overview [Jl.The Bulletin of the Medical Library Association, "1993,81 (3) :294-298.
3Cutler TW,Stebbins MR,Lai E. Problem-based learning using the online Medicare Part D Plan Finder tool[J].American Journal of Pharmaceutical Education,2008.47.
4Rounds LR,Rappaport BA. The successful use of problem-based learning in an online nursepractitioner course[J].Nurs Educ Perspect,2008.12-16.