NIDA NewsScan #62 - NewsScan #62 is a compilation of research studies that address such issues as hepatitis C and HIV infections in drug users, HIV prevalence at the U.S.-Mexico border, the effect of varenicline on learning deficits caused by nicotine withdrawal in mice as well as the effect of denicotinized cigarettes on smokers' brains, how family-based intervention helps male children of drug users, computerized cognitive-behavioral therapy and its effect on drug use, and how vigabatrin prevents relapse to methamphetamine use in an animal addiction model. [NIH.gov]