[Retracted] Blockchain in Secure Healthcare Systems: State of the Art, Limitations, and Future Directions

Table 8

Discussion of the blockchain healthcare current challenges and opportunities.

	Main problems/challenges	Opportunities
Medical information accuracy	There is no worldwide list for medical information. The records are stored. The quality diagnosis influences whether patients may get treated or not.	The association of the blockchain and medical care provided blockchain lists. The diagnosed accuracy forwarded must be enhanced.
Medical information interoperability	Less interoperability examined in medical related information. The data is disordered if information is forwarded from patient to caretaker, insurance presenter to presenter.	Digitalized health-related lists reversed by blockchain models that may be simply used by medical related organizations.
Fitness information security	Though medical information is simply reformed with fraudulent commits. Moreover, the information may have vanished because of normal calamity.	Information lists placed in the blockchain are unmodified. This removes the risk of information. Medical related information in blockchain technology should be secured from the destruction stopping from natural catastrophe because there is no availability of disaster fact.
Medical information handling	Maximum resources and time may not be managed and nonorganized medical organization dataset.	The information in the blockchain structure is stored and may be simply accessed by related groups at specific time.
Drug recommendation	Fraud medical recommendation is large. The drugs are not easy to differentiate from the authenticated party. It may have arranged significant influence on the health of patients.	Blockchain information is not changeable. It is not possible to adjust once the recommendation is pertained. Positive influences are simple in terms of pushing revert on suggestions and drug circulation.