TY - GEN AU - Fernández, Mariana F. AU - Duran, I. AU - Olea Serrano, Nicolás AU - Avivar, C. AU - Vierula, M. AU - Toppari, Jorma AU - Skakkebæk, Niels AU - Jørgensen, Niels PY - 2012 SN - 0105-6263 SN - 1365-2605 UR - http://hdl.handle.net/10481/24841 AB - In North European countries, a significant difference in semen quality among young men has been shown. Men from the western countries, Denmark, Germany and Norway, have lower semen quality than men from the eastern countries Finland, Estonia and... LA - eng PB - European Academy of Andrology KW - Normal men KW - Reproductive hormones KW - Semen quality KW - Spain KW - Sperm concentration TI - Semen quality and reproductive hormone levels in men from southern Spain ER -