However, Harry Rosenberg, the mortality-statistics chief at the National Center for Health Statistics, says he's unaware of evidence that HIV-negative gays have a lower life expectancy than other males.
Rosenburg is an expert on HIV in the gay population.
mnli hypothesis: Rosenburg is an expert on HIV in the gay population. premise: However, Harry Rosenberg, the mortality-statistics chief at the National Center for Health Statistics, says he's unaware of evidence that HIV-negative gays have a lower life expectancy than other males.