comparative studies of serum ca 19-9 and cea for sensitivity and the predictive value of true positive and negative results for detecting pancreatic , gastric , and colorectal carcinoma showed that serum ca 19-9 has significantly higher sensitivity and predictive value of true positive results for pancreatic carcinoma than for gastric and colorectal carcinoma ( p less than 0.05 ) .
C0030274
pancreatic
C0235974
pancreatic carcinoma