1. Division of Viral Hepatitis National Center for HIV/AIDS Viral Hepatitis, STD, and TB Prevention CDC Atlanta GeorgiaUSA
2. Office of Blood, Other Organ, and Tissue Safety National Center For Emerging and Zoonotic Infectious Diseases CDC Atlanta GeorgiaUSA
3. University of Pittsburgh Medical Center Pittsburgh PennsylvaniaUSA
4. University of Texas Southwestern Medical Center Dallas Texas USA