Lentiviral vectors, two decades later.

Naldini L San Raffaele Telethon Institute for Gene Therapy; Division of Regenerative Medicine, Stem Cells and Gene Therapy, San Raffaele Scientific Institute; Tissue Biology and Gene and Cell Therapy, Vita-Salute San Raffaele University Medical School, Via Olgettina, 58, 20132 Milano, Italy. naldini.luigi@hsr.it didier.trono@epfl.ch verma@salk.edu.
Trono D School of Life Sciences, École Polytechnique Fédérale de Lausanne, SV LVG Station 19, 1015 Lausanne, Switzerland. naldini.luigi@hsr.it didier.trono@epfl.ch verma@salk.edu.
Verma IM Laboratory of Genetics, Salk Institute, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA. naldini.luigi@hsr.it didier.trono@epfl.ch verma@salk.edu.