Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Schematic for elicitation of the coarsening mechanism among participants in the AIDS Link to Intravenous Experience (ALIVE) Study, Baltimore, Maryland, 1988–1998. A, interval-censored participants in ALIVE; B, right-censored participants in ALIVE who are not censored by death; C, right-censored participants in ALIVE who are censored by death.
