Acknowledgments
We thank the Japan Medical Communication staff for reviewing and editing the manuscript. We also thank our colleagues for their helpful comments.
Conflict of interest None.
Authors’ contributions: analysis: KS, KM; interpretation of data: KS; drafting and revising the paper: KS, KM; final approval of the paper: all authors; agreement to be accountable for the integrity of the case reports: all authors. All authors have read and approved the final manuscript.