Meyerhans, A., A. Jung, R. Maier, J. Vartanian, G. Bocharov, and S. Wain-Hobson. “The Non-Clonal and Transitory Nature of HIV in Vivo”. Swiss Medical Weekly, vol. 133, no. 3334, Aug. 2003, pp. 451-4, doi:10.4414/smw.2003.10255.