1.
Once-daily atazanavir/ritonavir versus twice-daily lopinavir/ritonavir, each in combination with tenofovir and emtricitabine, for management of antiretroviral-naive HIV-1-infected...
by Molina, Jean-Michel, Prof
The Lancet (British edition), 2008, Vol.372 (9639), p.646-655

2.
Diagnosis of deep-vein thrombosis: comparison of clinical evaluation, ultrasound, plethysmography, and venoscan with X-ray venogram
by Sandler, D A
The Lancet (British edition), 1984, Vol.2 (8405), p.716-719
