title: Investigating temporal changes in the rate of HIV progression: challenges and limitations.
authors.forename: A
authors.initials: A
authors.lastname: Cozzi Lepri
authors.forename: C A
authors.initials: CA
authors.lastname: Sabin
authors.forename: A N
authors.initials: AN
authors.lastname: Phillips
mesh_terms: D018450:Disease Progression; D015658:HIV Infections / Q000453:epidemiology / Q000503:physiopathology*; D006801:Humans