1. CenterIM.CloudITInfrastructure spending grew 12.4% in the fourth quarter. bringing total 2019 growth into positive territory according to IDC; 2020.https://www.idc.com/getdoc.jsp?containerId=prUS46188120
2. Markets markets healthcare cloud computing market; 2019.https://www.marketsandmarkets.com/Market‐Reports/cloud‐computing‐healthcare‐%market‐347.html.
3. Security FH Horizon Report.The state of cybersecurity in healthcare; 2021.https://fortifiedhealthsecurity.com/wp‐content/uploads/2020/12/Fortified‐Hea%lth‐Security‐2021‐Horizon‐Report.pdf
4. Blackbaud.Healthcare cloud computing market; 2020.https://www.blackbaud.com/securityincident
5. Estimation via compressed information