Touloumi G, Pantazis N, Pillay D, Paraskevis D, Chaix M-L, Bucher HC, Kucherer C, Zangerle R, Kran A-MB, Porter K, et al. Impact of HIV-1 subtype on CD4 count at HIV seroconversion, rate of decline, and viral load set point in European seroconverter cohorts. Clinical infectious diseases. 2012;56:888–897.