Contribution to Authorship
X.L and Y.W. was mainly in charge of data analysis and drafting the
article. F.W. contributed to the
acquisition of Shenzhen’s data, and revising the article for important
intellectual content. R.L. contributed to draft and revise the article.
L.C.
contributed
to the acquisition of Beijing’s data. J.Q. and W.Q. contributed to
conception and design, final approval of the version to be published as
corresponding author.