Is today's male population really less fertile? Declining semen quality--a global phenomenon?

D'Souza, Urban J AD'Souza, Vilma MNarayana, K2004-07-032009-05-292004-07-032009-05-292004-07-03D'Souza UJ, D'Souza VM, Narayana K. Is today's male population really less fertile? Declining semen quality--a global phenomenon? Indian Journal of Medical Sciences. 2004 Jul; 58(7): 305-6http://imsear.searo.who.int/handle/123456789/65943engHumansInfertility, Male --epidemiologyMaleIs today's male population really less fertile? Declining semen quality--a global phenomenon?Letter