Childhood cancer and hematological disorders negatively affect spermatogonial quantity at diagnosis: a retrospective study of a male fertility preservation cohort

Ieva Masliukaite, Elissavet Ntemou, Elizabeth A M Feijen, Marianne van de Wetering, Andreas Meissner, Alexandre T Soufan, Sjoerd Repping, Leontien M C Kremer, Kirsi Jahnukainen, Ellen Goossens, Ans M M van Pelt