1. Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan, R.O.C.
2. Department of Anesthesia, Chi‑Mei Medical Center, Liouying, Tainan 73657, Taiwan, R.O.C.
3. Department of Anatomy, School of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, R.O.C.