Mount Vernon Hospital, Northwood, England, United Kingdom
Charing Cross Hospital, London, England, United Kingdom
Veteran's Administration Hosp / West LA, Los Angeles, California, United States
Johns Hopkins Univ, Baltimore, Maryland, United States
HIV Institute / Davies Med Ctr, San Francisco, California, United States
George Washington Univ 5-403A, Washington, District of Columbia, United States
New York Univ, New York, New York, United States
Davies Med Ctr, San Francisco, California, United States