Ouwel, A.M. van den

azoospermia abnormality mutation vas deferens chromosome infertility oligozoospermia patient fibrosis y chromosome deferen hypogonadism deletion factor region cftr gene microdeletion cbavd analysis absence study reprod cftr gene mutation testicular semen analysis 508/- varicocele semen couple risk factors karyotype cytogenetic sperm 150 men failure chromosome abnormalities azfc region accessory gland infection study 150 men chromosomal cryptorchidism genet cftr mutation y chromosome microdeletions y chromosomal microdeletions laboratory exon 9 translocation transmembrane simoni regulator scrotal counselling examination cryptozoospermia result conductance screening dohle 36 men spermatogenic failure chloride excretion infection non-obstructive azoospermia department offspring c regions protein defect marker chromosome reijo history spermatogenic defects testicular failure cytogenetic abnormalities cftr protein 9 men scrotal surgery table marker