[1] Univ Penn, Philadelphia, PA 19104 USA
[2] UCSF, San Francisco, CA USA
[3] Univ Michigan, Ann Arbor, MI 48109 USA
[4] Northwestern, Chicago, IL USA
[5] Baylor, Dallas, TX USA
[6] Univ Colorado, Denver, CO 80202 USA
[7] RhoFed, Chapel Hill, NC USA
[8] NIAID, Bethesda, MD 20892 USA