American Society for Blood and Marrow Transplantation
   Professional society. Membership information, meeting information, and online text from the quarterly periodical.
   http://www.asbmt.org/

American Society of Hematology
   Professional organization. Includes information about society publications and meetings. Provides educational materials for scientists, doctors, and patients.
   http://www.hematology.org/

American Society of Pediatric Hematology/Oncology
   Professional group that studies and treats childhood cancer and blood diseases.
   http://www.aspho.org/

European Hematology Association
   Scientific society for the development of research and education in hematology.
   http://www.ehaweb.org/

International Society for Hematology and Stem Cells
   International professional society for clinicians and researchers in the field of experimental hematology including hematopoiesis, oncology, immunology, stem cell biology, transplantation and cell therapy.
   http://www.iseh.org/

International Society on Thrombosis and Haemostasis
   Professional society. Includes publications, conference information, and educational materials in the area of thrombosis, haemostasis, and hematology.
   http://www.med.unc.edu/isth/

The Society for Hematopathology
   Professional society for scientists in the clinical, morphological and functional aspects of the hematopoietic and lymphoreticular systems.
   http://www.socforheme.org

Turk Hematology Society
   National professional society of hematology. Organization hosts professional meeting.
   http://www.thd.org.tr