Physics. Congress tries again to head off looming helium crisis.
نویسنده
چکیده
COVER With her mother looking on, a woman in Hlabisa, South Africa, receives an HIV test as part of a survey by the Africa Centre for Health and Population Studies. In this issue, two Reports (pages 961 and 966) show that treating HIV-infected people reduces the risk of virus spread and increases life expectancy. A special News section (page 898) describes South Africa’s fi ght against the co-epidemics of HIV and tuberculosis.
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ورودعنوان ژورنال:
- Science
دوره 339 6122 شماره
صفحات -
تاریخ انتشار 2013