Authors: John R Hughes; Laura J Solomon; Amy E Livingston; Peter W Callas; Erica N Peters Journal: Drug Alcohol Depend Date: 2010-05-26 Impact factor: 4.492
Authors: Nicola Lindson; Paul Aveyard; Jackie T Ingram; Jennie Inglis; Jane Beach; Robert West; Susan Michie Journal: Trials Date: 2009-08-14 Impact factor: 2.279