title: Is male infertility on the increase?
authors.forename: S E
authors.initials: SE
authors.lastname: Lewis
mesh_terms: D006801:Humans; D007248:Infertility, Male / Q000453:epidemiology* / Q000209:etiology; D008297:Male; D006113:United Kingdom / Q000453:epidemiology; D014481:United States / Q000453:epidemiology