A randomized trial of the discontinuation of primary and secondary prophylaxis against Pneumocystis carinii pneumonia after highly active antiretroviral therapy in patients with HIV infection. Grupo de Estudio del SIDA 04/98 - Lopez Bernaldo de Quiros, J C; Miro, J M; Peña, J M (N Engl J Med, 2001)
, et al; Grupo de Estudio del SIDA 04/98.