Document is current

Article History

Accepted: 22 September 2020

First Online: 23 October 2020

Declarations

:

: This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

: Yitian Lang, Deshi Dong, and Bin Wu have no conflicts of interest that are directly relevant to the content of this article.

: This study was based on a literature review and modeling techniques. This study did not require approval by an institutional research ethics board.

: Not applicable.

: Not applicable.

: Not applicable.

: Not applicable.

: BW and DSD were involved in the design of the study. YTL collected the data, performed the economic analysis, and wrote the first draft of the manuscript. All authors approved this version for publication.

: The views expressed are those of the authors. The funding agencies played no role in the study design, data collection and analysis, decision to publish, or manuscript preparation.

: Not commissioned; externally peer reviewed.

: No additional data are available.