1. Prognostic significance of preoperative and postoperative CK19 and CEA mRNA levels in peripheral blood of patients with gastric cardia cancer
   Yu-Feng Qiao et al, 2017, World Journal of Gastroenterology CrossRef
2. Detection of CK20mRNA in peripheral blood of pancreatic cancer and its clinical significance
   Yun-Li Zhang, 2005, World Journal of Gastroenterology CrossRef