1. https://statistics.wmda.info Accessed 4 March 2020.
2. https://share.wmda.info/x/ED6OF Accessed 4 March 2020.
3. https://share.wmda.info/x/Yj6OF Accessed 4 March 2020.
4. https://share.wmda.info/display/LP/Coronavirus+-+Impact+on+Registry+Operations?preview=/344866402/344867270/WBMT_COVID-19-2.pdf#Coronavirus-ImpactonRegistryOperations-WorldwideNetworkForBlood&MarrowTransplantation(WBMT) Accessed 4 March 2020.