Ever users versus never users of a less risky cigaretteHUGHES, John R; KEELY, Josue P; CALLAS, Peter W et al.Psychology of addictive behaviors. 2005, Vol 19, Num 4, pp 439-442, issn 0893-164X, 4 p.Article

Measures of abstinence in clinical trials: issues and recommendationsHUGHES, John R; KEELY, Josue P; NIAURA, Ray S et al.Nicotine & tobacco research. 2003, Vol 5, Num 1, pp 13-25, issn 1462-2203, 13 p.Article

Effect of smoking reduction on later cessation: A pilot experimental studyCARPENTER, Matthew J; HUGHES, John R; KEELY, Josue P et al.Nicotine & tobacco research. 2003, Vol 5, Num 2, pp 155-162, issn 1462-2203, 8 p.Article