Author Contributions
J.B.
H.B. G and J.J. H were the major contributors to the drafting of the manuscript. J.B. and D.Q. L were responsible for contacting the hospitals. D.Q. L analyzed and interpreted the data. The questionnaire was designed by H.B. G, J.J. H, J B, and D.Q. L. All authors read and approved the submitted version of the manuscript.