Transient Peripheral Immune Activation follows Elective Sigmoidoscopy or Circumcision in a Cohort Study of MSM at Risk of HIV Infection. oleh Javier R Lama, Shelly T Karuna, Shannon P Grant, Edith M Swann, Carmela Ganoza, Patricia Segura, Silvia M Montano, Martin Lacherre, Stephen C De Rosa, Susan Buchbinder, Jorge Sanchez, M Juliana McElrath, Maria P Lemos, HVTN 914 Study Team