Table 2.

Comparison of existing surveys on blockchian-based healthcare studies.

Article	EHR/PHR Management	Health Insurance	Telehealth Use Cases	Telemedicine Use Cases	Patients Health Follow-Up	Drugs/Pharmaceutical Management	Industry- based Research-projects
[35]	$✓$	$✓$	$\times$	$\times$	$\times$	$✓$	$\times$
[36]	$✓$	$✓$	$\times$	$\times$	$\times$	$\times$	$\times$
[37]	$✓$	$✓$	$\times$	$\times$	$\times$	$\times$	$\times$
[27]	$✓$	$✓$	$\times$	$\times$	$\times$	$✓$	$✓$
[38]	$✓$	$✓$	$\times$	$\times$	$\times$	$✓$	$\times$
[28]	$✓$	$\times$	$\times$	$\times$	$\times$	$✓$	$✓$
[39]	$✓$	$✓$	$\times$	$\times$	$\times$	$✓$	$\times$
[40]	$✓$	$✓$	$\times$	$\times$	$\times$	$✓$	$\times$
[41]	$✓$	$✓$	$\times$	$\times$	$\times$	$✓$	$\times$
[42]	$✓$	$✓$	$\times$	$\times$	$\times$	$✓$	$✓$
[22]	$✓$	$✓$	$\times$	$\times$	$\times$	$\times$	$\times$
Our Study	$✓$	$✓$	$✓$	$✓$	$✓$	$✓$	$✓$