title: Evidence for decreasing quality of sperm. Presentation of data on sperm concentration was flawed.
authors.forename: A
authors.initials: A
authors.lastname: Lerchl
mesh_terms: D003627:Data Interpretation, Statistical; D006801:Humans; D008297:Male; D013076:Sperm Count; D013094:Spermatozoa / Q000502:physiology*