Aleksander Giwercman, Jørn Kvist Thomsen, Jens Hertz, Vibeke Jensen, Niels E Skakkebæk, Birgit Meinecke et al
Giwercman A, Thomsen J K, Hertz J, Jensen V, Skakkebæk N E, Meinecke B et al.
Prevalence of carcinoma in situ of the testis in 207 oligozoospermic men from infertile couples: prospective study of testicular biopsies
BMJ 1997; 315 :989
doi:10.1136/bmj.315.7114.989