Pharmacokinetic variability and strategy for therapeutic drug monitoring of saquinavir (SQV) in HIV-1 infected individuals. - Regazzi, Mario B.; Villani, Paola; Maserati, Renato; Cocchi, Laura; Giacchino, Roberto; Burroni, Daniela; Rettani, Mauro (British Journal of Clinical Pharmacology, 1999)