Table 1.

Genetic Regions Included in the Analyses

Gene	Chromosome	Location (bp)	# SNPs genotyped
CHRNA2	8	27,363,195–27,402,730	20
CHRNA4	20	61,435,109–61,473,192	7
CHRNA6/CHRNB3	8	42,661,719–42,752,776	10
CHRNA7	15	30,109,018–30,258,541	24
CHRNA9	4	40,022,226–40,061,730	8
CHRNA10	11	3,633,393–3,659,190	8
CHRNB2	1	152,796,881–152,828,978	4
CHRNG/CHRND	2	233,089,166–233,129,282	7