Late-term smoking cessation despite initial failure: an evaluation of bupropion sustained release, nicotine patch, combination therapy, and placebo.
Jamerson BD, Nides M, Jorenby DE, Donahue R, Garrett P, Johnston JA, Fiore MC, Rennard SI, Leischow SJ. Clin Ther. 2001 May; 23(5):744-52.