1. Department of Internal Medicine, Rush University Medical Center, Chicago, Illinois.
2. Department of Orthopaedic Surgery, Rothman Institute at Thomas Jefferson University, Philadelphia, Pennsylvania.
3. Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota.
4. Division of Parasitic Diseases and Malaria, Center for Global Health
5. Division of Healthcare Quality Promotion, National Center for Emerging Zoonotic and Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia.