ONLY KALETRA. Long-term (4 years) efficacy of lopinavir/ritonavir monotherapy for maintenance of HIV suppression.
Pulido F, Delgado R, Pérez-Valero I, González-García J, Miralles P, Arranz A, Hernando A, Arribas JR.
J Antimicrob Chemother 2008; 61:1359-61.