Facial flushing in a 22-year-old ALDH2 heterozygote before (left) and after (right) drinking alcohol. The individual pictured in this figure has given written consent for publication of his ...

A single-nucleotide polymorphism in CCR2b, one of the minor coreceptors for HIV, is associated with delayed progression to AIDS in either homozygote or heterozygote individuals. The bicyclam ...