1. Evidence for decreasing quality of semen during past 50 years;Carlsen;Br. Med. J.,1992
2. L. Multigner, A. Spira, The epidemiology of male reproduction, in: C. Barratt, C. de Jong, D. Mortimer, J. Parinaud (Eds.), Genetics of Human Male Fertility, EDK Press, Paris, 1997, pp. 43–65.
3. Decline in semen quality among fertile men in Paris during the past 20 years;Auger;N. Engl. J. Med.,1995
4. Fertility and offspring sex ratio of men who develop testicular cancer: a record linkage study;Jacobsen;Hum. Reprod.,2000
5. Cancer registration in Germany: current status, perspectives and trends in cancer incidence 1973–1993;Schuz;J. Epidemiol. Biostat.,2000