Appendix A – Studies Included and Excluded from Meta …

Mahmood T, Darzi A. The learning curve for a colonoscopy simulator in the absence of any feedback: no feedback, no learning. Surgical Endoscopy 2004 Aug 23;18(8):1224-30. Van Sickle KR, Gallagher AG, Smith CD. The effect of escalating feedback on the acquisition of psychomotor skills for laparoscopy. Surgical Endoscopy 2007 Feb 2;21(2):220-4. ................
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