title: [Male infertility--pathogenic factors].
authors.forename: Frank-Michael
authors.initials: FM
authors.lastname: Köhn
authors.forename: Hans-Christian
authors.initials: HC
authors.lastname: Schuppe
mesh_terms: D003456:Cryptorchidism / Q000175:diagnosis; D003937:Diagnosis, Differential; D058006:General Practice; D005832:Genital Diseases, Male / Q000175:diagnosis; D006801:Humans; D007006:Hypogonadism / Q000175:diagnosis; D007018:Hypopituitarism / Q000175:diagnosis; D007248:Infertility, Male / Q000209:etiology*; D017436:Kallmann Syndrome / Q000175:diagnosis; D007713:Klinefelter Syndrome / Q000175:diagnosis; D008297:Male; D010808:Physical Examination; D055101:Semen Analysis