Authorship list
Hitomi Hirose (HH) = Original draft preparation. Hitoshi Suzuki (HS) = Conceptualization and editing the manuscript. Yukako Umezawa (YU), Masako Iwasaki (MI), Hiromitsu Fukuda (HF), and Hisatsugu Takahara (HT) = Data collection, validation. Shigeki Tomita (ST) = Histopathological analysis and editing the manuscript. Yusuke Suzuki (YS) = Supervision.