Contribution to authorship
Y.L., Z.S., and H.W. participated in the design and plan of the study.
Y.L. and Z.S. contributed to the data collection. Y.L. and H.W. drafted
the manuscript. Y.L. and H.W. revised the manuscript critically. All
authors read and approved the final manuscript.
Details of ethical approval
No ethical approval was sought, but written consent to
publish was obtained from the patient