A Follow-Up of the Multicenter Collaborative Study on HIV-1 Drug Resistance and Tropism Testing Using 454 Ultra Deep Pyrosequencing - Saint John, Elizabeth P. (454 Life Sciences (Brandford, Estats Units d'Amèrica)) ; Simen, Birgitte B. (454 Life Sciences (Brandford, Estats Units d'Amèrica)) ; Turenchalk, Gregory S. (454 Life Sciences (Brandford, Estats Units d'Amèrica)) ; Braverman, Michael S. (454 Life Sciences (Brandford, Estats Units d'Amèrica)) ; Abbate, Isabella (National Institute for Infectious Diseases (Roma, Itàlia)) ; Aerssens, Jeroen (Janssen Infectious Diseases (Beerse, Bèlgica)) ; Bouchez, Olivier (Plateforme Génomique Toulouse/Laboratoire Génétique Cellulaire (Toulouse, França)) ; Gabriel, Christian (Blutzentrale Linz (Àustria)) ; Izopet, Jacques (INSERM U56 (Toulouse, França)) ; Meixenberger, Karolin (Robert Koch-Institute (Berlin, Alemanya)) ; Di Giallonardo, Francesca (University of Zurich) ; Schlapbach, Ralph (University of Zurich) ; Paredes, Roger (Institut Germans Trias i Pujol. Institut de Recerca de la Sida IrsiCaixa) ; Sakwa, James (Technology Innovation Agency-National Genomics Platform (Durban, Sud-àfrica)) ; Schmitz-Agheguian, Gudrun G. (Roche Applied Science (Penzberg, Alemanya)) ; Thielen, Alexander (Institute of Immunology and Genetics (Kaiserslautern, Alemanya)) ; Victor, Martin (Roche Applied Science (Penzberg, Alemanya)) ; Metzner, Karin J. (University of Zurich) ; Däumer, Martin (Institute of Immunology and Genetics (Kaiserslautern, Alemanya)) ; 454 HIV-1 Alpha Study Group