Association of serum cotinine level with a cluster of three nicotinic acetylcholine receptor genes (CHRNA3/CHRNA5/CHRNB4) on chromosome 15
Keskitalo, Kaisu; Broms, Ulla; Heliovaara, Markku; Ripatti, Samuli; Surakka, Ida; Perola, Markus; Pitkaniemi, Janne; Peltonen, Leena; Aromaa, Arpo; Kaprio, Jaakko (2009)