HIV Infection Is Associated with a Lower Incidence of Constriction in Presumed Tuberculous Pericarditis: A Prospective Observational Study. - Ntsekhe, Mpiko; Wiysonge, Charles S.; Gumedze, Freedom; Maartens, Gary; Commerford, Patrick J.; Volmink, Jimmy A.; Mayosi, Bongani M. (PLoS ONE, 2008)