Dr. Zhang Chenghai

Mahusay siya sa laparotomy at laparoscopic minimally invasive na paggamot ng mga gastrointestinal tumor at mga tumor sa tiyan, lalo na ang laparoscopic radical gastrectomy (D2 lymph node dissection), laparoscopic distal gastrectomy, laparoscopic proximal gastrectomy, laparoscopic radical resection ng kanang colon cancer, laparoscopic radical resection ng kaliwang colon cancer, laparoscopic radical resection ng descending colon cancer, laparoscopic radical resection ng rectal cancer (sphincter-preserving surgery o Miles operation), laparoscopic multiple primary gastrointestinal cancer, radical resection ng multiple colon cancer at minimally invasive surgical treatment ng mga gastrointestinal stromal tumor.