8Toy EC.Case files:physiology[M].Beijing:People's Medical Publishing House,2007:3.
9Cliff WH,Nesbitt CL.The directed case method:teaching concept and process in a content-rich courrse[J].J Coll Sci Teach,2000,30:64-66.
10Evidence-Based Medicine Working Group.Evidence-based medicine A new approach to reaching the practice of medicine. The Journal of The American Medical Association . 1992