Hayden McRobbie, Simon Thornley, Chris Bullen, Ruey-Bin Lin, Hugh Senior, Murray Laugesen, Robyn Whittaker and Peter Hajek
Addiction 105 ( 7 ): 1290 - 1298 , 2010
Robert Scragg, Robert J . Wellman, Murray Laugesen and Joseph R. DiFranza
Addictive Behaviors 33 ( 5 ): 689 - 698 , 2008