CYP1A1 and Azoospermia: Thestudy was therefore designed to investigate the associationof the CYP1A1*2A polymorphism withidiopathic non-obstructive azoospermia and to assessthe impact of the status of life style factorson the relationship between the polymorphism andsusceptibility to idiopathic non-obstructive azoospermia.