Deo R, Nalls MA, Avery CL, Smith JG, Evans DS, Keller MF, Butler AM, Buxbaum SG, Li G, P Quibrera M, et al. Common genetic variation near the connexin-43 gene is associated with resting heart rate in African Americans: a genome-wide association study of 13,372 participants. Heart Rhythm. 2013  ;10(3):401-8.

Olfson E, Saccone NL, Johnson EO, Chen L-S, Culverhouse R, Doheny K, Foltz SM, Fox L, Gogarten SM, Hartz S, et al. Rare, low frequency and common coding variants in CHRNA5 and their contribution to nicotine dependence in European and African Americans. Mol Psychiatry. 2016  ;21(5):601-7.