Detection of partial and/or complete Y chromosome microdeletions of azoospermia factor a (AZFa) sub-region in infertile Iraqi patients with azoospermia and severe oligozoospermia

检测伊拉克无精子症和严重少精子症不育患者中无精子症因子a（AZFa）亚区的部分和/或完全Y染色体微缺失