1. Direct cell-to-cell contact mediating upregulation of HIV-1 replication 
Vincent Calvez, Marc Grandadam 
Clinical Microbiology and Infection 
Volume 2, Issue 2, Pages (October 1996)
DOI: /j tb00208.x
Copyright © 1996 European Society of Clinical Infectious Diseases Terms and Conditions

2. Figure 1
Monitoring of the HIV-1 production in supernatants of cell cultures expressed as reverse transciptase activity.
Clinical Microbiology and Infection 1996 2, 77-78DOI: ( /j tb00208.x)
Copyright © 1996 European Society of Clinical Infectious Diseases Terms and Conditions