[1] NIH, Natl Ctr Complementary & Alternat Med, Bethesda, MD 20892 USA
[2] Univ Calif San Francisco, Sch Med, San Francisco, CA USA
[3] New York Blood Ctr, New York, NY 10021 USA
[4] Fred Hutchinson Canc Res Ctr, Div Publ Hlth Sci, Stat Ctr HIV AIDS Res & Prevent, Seattle, WA 98104 USA
[5] Univ Washington, Sch Med, Seattle, WA USA
[6] San Francisco Dept Publ Hlth, San Francisco, CA USA
[7] Fenway Community Hlth Ctr, Boston, MA USA
[8] Howard Brown Hlth Ctr, Chicago, IL USA
[9] Denver Publ Hlth, Denver, CO USA
[10] Univ Colorado, Hlth Sci Ctr, Denver, CO USA