Declining sperm count. Semen quality has declined among men born in France since 1950.
de Mouzon
J
J
Thonneau
P
P
Spira
A
A
Multigner
L
L
D000367:Age Factors; D005602:France; D006801:Humans; D008297:Male; D012042:Registries; D012661:Semen / Q000502:physiology; D013076:Sperm Count