The authors’ contributions are as follows: P. M. C. and M. D. Y.
designed the study; Y. F. L. carried out the data analysis and
participated in the draft preparation; Y. Y. C. was responsible for
recruiting the participants and carried out the measurements; H.
C. H. and Y. C.W. carried out the HPLC analysis. P. M. C. wrote the
paper and had primary responsibility for the final content. All
authors read and approved the final manuscript.