21.   The Taliban may have acted, too, because of the upsurge in addiction in Afghanistan itself, where users generally smoke opium, rather than inject refined heroin.

22.   Their scarred veins were so weak that they were injecting heroin directly into muscles.

23.   They inject heroin together, then go their separate ways.

24.   Visser runs a drop-in center at the church where drug addicts can inject heroin using clean needles.

25.   The highest rate of injecting heroin among that age group was reported from the Russian Federation, it said.