Allo-HSCT	Allogeneic hematopoietic stem cell transplantation
BM	Bone marrow
CMV	Cytomegalovirus
DSA	Donor-directed anti-HLA-specific allo-antibody
EFS	Event-free survival
GETH-TC	Spanish Group of Hematopoietic Transplant and Cell Therapy
GF	Graft failure
GMTH	Madrid Group of Hematopoietic Transplant
GVHD	Graft-versus-host disease
Haplo-HSCT	Haploidentical hematopoietic stem cell transplantation
HCT-CI	Hematopoietic stem cell transplant comorbidity index
IVIG	Intravenous immunoglobulins
HLA	Human leukocyte antigen
MFI	Mean fluorescence intensity
MUD	HLA-matched unrelated donor
MMUD	HLA-mismatched unrelated donor
NRM	Non-relapse mortality
OS	Overall survival
PBSC	Peripheral blood stem cells
SOS	sinusoidal obstruction syndrome
TPE	Therapeutic plasma exchange
UCB	Umbilical cord blood.