食管癌患者手术治疗前后血清CEA,CA19-9和SS检测的临床意义
식관암환자수술치료전후혈청CEA,CA19-9화SS검측적림상의의
Clinical Significance of Determination of Changes of Serum CEA,CA19-9 and SS Levels After Operation in Patients with Esophageal Cancer