Table 8.

Scalability assessment based on the authors’ conclusions in each study.

Scalability assessment	Studies, N	Reference
Not able to be expanded	1	[27]
Able to be expanded, but the diffusion and sustainability will depend on a supportive policy environment	1	[34]
Able to be expanded but requires cost-benefit analysis for reimbursement planning	3	[28,36,38,39]
Able to be expanded but requires cost-effectiveness analysis	3	[29,30,35]
Able to be expanded but requires some technical changes, cost-benefit analysis for reimbursement planning, and solutions for regulatory issues	2	[32,33]
Able to be expanded under real-world conditions	2	[31,37]