Declining sperm counts? More research is needed.
Jouannet
P
P
Laboratoire de Biologie de la Reproduction, CECOS, Hôpital Cochin, Paris, France.
Auger
J
J
D004777:Environment; D005298:Fertility; D006801:Humans; D008297:Male; D013076:Sperm Count / Q000379:methods