1. Untitled by Martin Blank
Margaret R. Wentz, BA 
Mayo Clinic Proceedings 
Volume 87, Issue 7, (July 2012)
DOI: /j.mayocp
Copyright © 2012 Mayo Foundation for Medical Education and Research Terms and Conditions

2. Mayo Clinic Proceedings 2012 87, DOI: (10.1016/j.mayocp.2011.08.008)
Copyright © 2012 Mayo Foundation for Medical Education and Research Terms and Conditions

3. Mayo Clinic Proceedings 2012 87, DOI: (10.1016/j.mayocp.2011.08.008)
Copyright © 2012 Mayo Foundation for Medical Education and Research Terms and Conditions