The main reasons for shortages were the lack of donors, followed by insufficient procurement capacity at national level and technical reasons (e.g. practical difficulties in finding a compatible match for patients in need of an HSC transplantation).
Puuduse peamised põhjused olid doonorite puudus, ebapiisav hankimise suutlikkus riiklikul tasandil ja tehnilised põhjused (nt praktilised probleemid vereloome tüvirakkude siirdamist vajavatele patsientidele koesobiva doonori leidmisel).