Donor age influences graft-versus-host-disease-relapse-free survival after allogeneic stem cell transplant in elderly patients in two countries from Latin America - Mariano Berro; Nelson Hamerschlak; Vera Milovic; Belén Nieto Castro; Andres P García; Gonzalo Ferini; Juan Jose Real; Adriana Vitriú; Alberto Giménez Conca; Georgina Bendek; Sebastián Yantorno; Juliana Martínez Rolón; et al. (2022)