A randomized, placebo-controlled trial of varenicline, a selective alpha4beta2 nicotinic acetylcholine receptor partial agonist, as a new therapy for smoking cessation in Asian smokers.
Tsai ST, Cho HJ, Cheng HS, Kim CH, Hsueh KC, Billing CB Jr, Williams KE. Clin Ther. 2007 Jun; 29(6):1027-39.