1.   Most heroin users prefer to inject the drug.

2.   An autopsy has not been completed on Pizzuto, a recovering heroin user who had been in methadone treatment, and jail officials would not comment Saturday.

3.   As it happens, Koester had been trying to win the trust of heroin users so he could study their drug habits.

4.   A heroin user for three years, he avoids the Tenderloin drug scene.

5.   A third study financed under the federal grant focuses on heroin users who do want treatment.

6.   According to a DEA supervisor in New York, more women have become heroin users in recent years.

7.   Afflicted heroin users become clumsy, their speech slurs and they wobble when they walk.

8.   But change comes hard to heroin users, who see the drug as their lone escape, however fleeting and insubstantial, from the horrors of everyday life.

9.   But many heroin users stay away, because detoxification means undergoing agonizing withdrawal with little more than modest doses of tincture of opium and meditation lessons from Buddhist monks.

10.   Doctors in San Francisco say they are seeing more such infections than ever before, especially among heroin users.