|Other Retailer||Price Checked Time||Their Price in NZD||Our Price|
|Amazon UK||2 days ago||37.13||$20.83||You save $16.30|
|Amazon US||7 days ago||35.9||$20.83||You save $15.07|
Dr John McMahon was until recently senior lecturer at the Centre for Alcohol and Drug Studies at the University of Paisley. He is the author of several scholarly articles and the founder of 24/7 Help Yourself, a website dedicated to helping people overcome alcohol dependence.