Schüpbach, J; Gebhardt, M D; Tomasik, Z; Niederhauser, C; Yerly, S; Bürgisser, P; Matter, L; Gorgievski, M; Dubs, R; Schultze, D; Steffen, I; Andreutti, C; Martinetti, G; Güntert, B; Staub, R; Daneel, S; Vernazza, P (2007). Assessment of recent HIV-1 infection by a line immunoassay for HIV-1/2 confirmation. PLoS Medicine, 4(12):e343.
Knuchel, M C; Jullu, B; Shah, C; Tomasik, Z; Stoeckle, M P; Speck, R F; Nadal, D; Mshinda, H; Böni, J; Tanner, M; Schüpbach, J (2007). Adaptation of the Ultrasensitive HIV-1 p24 Antigen Assay to Dried Blood Spot Testing. Journal of Acquired Immune Deficiency Syndromes, 44(3):247-253.
Tehe, A; Maurice, C; Hanson, D L; Borget, M Y; Abiola, N; Maran, M; Yavo, D; Tomasik, Z; Böni, J; Schüpbach, J; Nkengasong, J N (2006). Quantification of HIV-1 p24 by a highly improved ELISA: An alternative to HIV-1 RNA based treatment monitoring in patients from Abidjan, Côte d'Ivoire. Journal of Clinical Virology, 37(3):199-205.
Schüpbach, J; Tomasik, Z; Knuchel, M C; Opravil, M; Günthard, H F; Nadal, D; Böni, J (2006). Optimized virus disruption improves detection of HIV-1 p24 in particles and uncovers a p24 reactivity in patients with undetectable HIV-1 RNA under long-term HAART. Journal of Medical Virology, 78(8):1003-1010.
Knuchel, M C; Tomasik, Z; Speck, R F; Lüthy, R; Schüpbach, J (2006). Ultrasensitive quantitative HIV-1 p24 antigen assay adapted to dried plasma spots to improve treatment monitoring in low-resource settings. Journal of Clinical Virology, 36(1):64-67.
Brinkhof, M W G; Böni, J; Steiner, F; Tomasik, Z; Nadal, D; Schüpbach, J (2006). Evaluation of p24-based antiretroviral treatment monitoring in pediatric HIV-1 infection: prediction of the CD4+ T-cell changes between consecutive visits. JAIDS Journal of Acquired Immune Deficiency Syndromes, 41(5):557-562.
Schüpbach, J; Günthard, H F; Joos, B; Fischer, M B; Böni, J; Tomasik, Z; Yerly, S; Perrin, L; Battegay, M; Furrer, H; Vernazza, P; Bernasconi, E; Hirschel, B (2005). HIV-1 p24 may persist during long-term highly active antiretroviral therapy, increases little during short treatment breaks, and its rebound after treatment stop correlates with CD4(+) T cell loss. JAIDS Journal of Acquired Immune Deficiency Syndromes, 40(3):250-256.
Schüpbach, J; Böni, J; Bisset, L R; Tomasik, Z; Fischer, M; Günthard, H F; Ledergerber, B; Opravil, M (2003). HIV-1 p24 antigen is a significant inverse correlate of CD4 T-cell change in patients with suppressed viremia under long-term antiretroviral therapy. JAIDS Journal of Acquired Immune Deficiency Syndromes, 33(3):292-299.
Schüpbach, J; Böni, J; Flepp, M; Tomasik, Z; Joller, H; Opravil, M (2001). Antiretroviral treatment monitoring with an improved HIV-1 p24 antigen test: an inexpensive alternative to tests for viral RNA. Journal of Medical Virology, 65(2):225-232.
Bisset, L R; Bosbach, S; Tomasik, Z; Lutz, H; Schüpbach, J; Böni, J (2001). Quantification of in vitro retroviral replication using a one-tube real-time RT-PCR system incorporating direct RNA preparation. Journal of Virological Methods, 91(2):149-155.
Schüpbach, J; Tomasik, Z; Nadal, D; Ledergerber, B; Flepp, M; Opravil, M; Böni, J (2000). Use of HIV-1 p24 as a sensitive, precise and inexpensive marker for infection, disease progression and treatment failure. International Journal of Antimicrobial Agents, 16(4):441-445.
Ledergerber, B; Flepp, M; Böni, J; Tomasik, Z; Cone, R W; Lüthy, R; Schüpbach, J (2000). Human immunodeficiency virus type 1 p24 concentration measured by boosted ELISA of heat-denatured plasma correlates with decline in CD4 cells, progression to AIDS, and survival: comparison with viral RNA measurement. Journal of Infectious Diseases, 181(4):1280-1288.
Bürgisser, P; Vernazza, P; Flepp, M; Böni, J; Tomasik, Z; Hummel, U; Pantaleo, G; Schüpbach, J (2000). Performance of five different assays for the quantification of viral load in persons infected with various subtypes of HIV-1. Swiss HIV Cohort Study. JAIDS Journal of Acquired Immune Deficiency Syndromes, 23(2):138-144.
Nadal, D; Böni, J; Kind, C; Varnier, O E; Steiner, F; Tomasik, Z; Schüpbach, J (1999). Prospective evaluation of amplification-boosted ELISA for heat-denatured p24 antigen for diagnosis and monitoring of pediatric human immunodeficiency virus type 1 infection. Journal of Infectious Diseases, 180(4):1089-1095.
Böni, J; Opravil, M; Tomasik, Z; Rothen, M; Bisset, L; Grob, P J; Lüthy, R; Schüpbach, J (1997). Simple monitoring of antiretroviral therapy with a signal-amplification-boosted HIV-1 p24 antigen assay with heat-denatured plasma. AIDS, 11(6):F47-F52.
Schüpbach, J; Flepp, M; Pontelli, D; Tomasik, Z; Lüthy, R; Böni, J (1996). Heat-mediated immune complex dissociation and enzyme-linked immunosorbent assay signal amplification render p24 antigen detection in plasma as sensitive as HIV-1 RNA detection by polymerase chain reaction. AIDS, 10(10):1085-1090.
Schüpbach, J; Pyra, H; Jendis, J; Tomasik, Z; Böni, J (1996). Isolation of an in vitro transmissible agent with reverse transcriptase activity from a blood donor with a borderline-positive HIV-1 serology for more than five years. Clinical and Diagnostic Virology, 5(2-3):197-203.