1. Ensuring Appropriate Timing of Antimicrobial Prophylaxis by Andrew D. Rosenberg, Daniel Wambold, Linede Kraemer, Maureen Begley- Keyes, Scott L. Zuckerman, Neeraj Singh, Max M. Cohen, and Michele V. Bennett J Bone Joint Surg Am Volume 90(2):226-232 February 1, 2008 ©2008 by The Journal of Bone and Joint Surgery, Inc.

2. Time Out Preoperative Verification Checklist. Andrew D. Rosenberg et al. J Bone Joint Surg Am 2008;90:226-232 ©2008 by The Journal of Bone and Joint Surgery, Inc.

3. Distribution of timing of antibiotic administration in the pre-incision period by fifteen-minute groupings. Andrew D. Rosenberg et al. J Bone Joint Surg Am 2008;90:226-232 ©2008 by The Journal of Bone and Joint Surgery, Inc.

4. Comparison of compliance before and after implementation of the time-out protocol, demonstrating significantly improved compliance for the total hip arthroplasty group, the total knee arthroplasty group, and both patient groups (p < 0.0001). Andrew D. Rosenberg et al. J Bone Joint Surg Am 2008;90:226-232 ©2008 by The Journal of Bone and Joint Surgery, Inc.