The Severe Chronic Neutropenia International Registry (SCNIR or Registry) is a global organization dedicated to finding the causes, consequences and best treatments for severe chronic neutropenia (SCN). The SCNIR opened in 1994 after researchers discovered that the hematopoietic growth factor called granulocyte colony stimulating factor (G-CSF) is an effective treatment for SCN. Check out their website for more information as well as the resources below: