6[2]Dornan T,Hadfleld J,Brown M,et al.How can medical students learn in a self-directed way in the clinical environment?Design-based research[J].Med Educ,2005,39(4):356-64.
7[5]Casey PM,Magrane D,Leaniek TG.Improved perfornumee and student satisfaction after implementation of a problem-based preclinieal obstetrics and gynecology eurriculum[J].Am J Obstet Gynecol,2005,193 (5):1874-1878.