Spermatogonial quantity in human prepubertal testicular tissue collected for fertility preservation prior to potentially sterilizing therapy

J. B. Stukenborg^*, J. P. Alves-Lopes, M. Kurek, Halima Albalushi, A. Reda, V. Keros, V. Töhönen, R. Bjarnason, P. Romerius, M. Sundin, U. Norén Nyström, C. Langenskiöld, H. Vogt, L. Henningsohn, R. T. Mitchell, O. Söder, C. Petersen, K. Jahnukainen