title: Guest Editorial.
authors.affiliation: Hematology and Stem Cell Transplantation Clinic, Ankara Oncology Education and Research Hospital, Ankara, Turkey. Electronic address: emretekgunduz@yahoo.com.
authors.forename: Emre
authors.initials: E
authors.lastname: Tekgündüz
authors.affiliation: Department of Hematology, Pamukkale University Faculty of Medicine, Denizli, Turkey.
authors.forename: İsmail
authors.initials: İ
authors.lastname: Sarı
authors.affiliation: Hematology and Stem Cell Transplantation Clinic, Ankara Oncology Education and Research Hospital, Ankara, Turkey.
authors.forename: Fevzi
authors.initials: F
authors.lastname: Altuntaş
mesh_terms: D003299:Cooperative Behavior; D018380:Hematopoietic Stem Cell Transplantation; D006801:Humans; D014184:Transplantation, Homologous