Correction to: BMC Health Serv Res 21, 722 (2021).

https://doi.org/10.1186/s12913-021-06717-5

Following publication of the original article [1], the order that the authors appeared in the author list was incorrect. The reason is that the authors mistakenly placed the corresponding author Qunhong Wu at first.

The author list has been updated above and the original article [1] has been corrected.