title: A report on CF carrier frequency among men with infertility owing to congenital absence of the vas deferens.
authors.forename: C
authors.initials: C
authors.lastname: Williams
authors.forename: E S
authors.initials: ES
authors.lastname: Mayall
authors.forename: R
authors.initials: R
authors.lastname: Williamson
authors.forename: A
authors.initials: A
authors.lastname: Hirsh
authors.forename: H
authors.initials: H
authors.lastname: Cookson
mesh_terms: D003550:Cystic Fibrosis / Q000453:epidemiology* / Q000235:genetics / Q000517:prevention & control; D004252:DNA Mutational Analysis; D005060:Europe / Q000453:epidemiology; D005787:Gene Frequency; D006580:Genetic Carrier Screening; D005820:Genetic Testing; D006579:Heterozygote; D006801:Humans; D015994:Incidence; D007248:Infertility, Male / Q000453:epidemiology* / Q000235:genetics; D008131:London / Q000453:epidemiology; D008297:Male; D014649:Vas Deferens / Q000002:abnormalities*