On models, methods and premature conclusions.
Prochaska
J O
JO
Cancer Prevention Research Consortium, University of Rhode Island, Kingston 02881-0808, USA.
Velicer
W F
WF
D002140:California / Q000453:epidemiology; D005500:Follow-Up Studies; D006801:Humans; D009042:Motivation; D012907:Smoking / Q000453:epidemiology / Q000523:psychology*; D016540:Smoking Cessation / Q000523:psychology*; D000074606:Smoking Prevention