With heterosexual transmission the chief cause of global HIV spread, those without the power to select sexual partners, choose the timing of sexual encounters, or insist on safer sex practices are unable to protect themselves from infection.
Eitan Neidich, Alon B. Neidich, David A. Axelrod, MD, and John P. Roberts, MD
Geographic disparities in availability of organs for transplant have spawned for-profit companies that help patients get on waitlists in more than one region and arrange travel for them if an organ becomes available.