The Effect of β-Carotene Supplementation on the Pharmacokinetics of Nelfinavir and Its Active Metabolite M8 in HIV-1-infected Patients oleh Humayoun Akhtar, Neera Singhal, Isabelle Seguin, Lina DelBalso, Marc Bourbeau, Bobby M. Chauhan, Donald William Cameron, Mohammed-Rachid Boulassel, David M. Burger, Richard G. Lalonde, Nancy L. Sheehan, Rolf P. G. van Heeswijk, Brian C. Foster