RT Journal Article SR Electronic T1 A brief intervention reduced alcohol drinking for up to 48 months in problem drinkers JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 151 OP 151 DO 10.1136/ebm.7.5.151 VO 7 IS 5 YR 2002 UL http://ebm.bmj.com/content/7/5/151.abstract AB