AUTHOR CONTRIBUTIONS
Junn-Liang Chang: drafting manuscript review, corresponding author, data interpretation, evaluation, information acquisition and final approval;
Kuang-Ting Liu: responsible for operating pathological tissue / specimen processing, information acquisition and final approval, concept and design, critical review and final approval.
Yueh-Ching Chang: responsible for operating pathological tissue sections, special chemical staining and immunohistochemical staining, information acquisition, critical review, and final approval.