[Table 6.2.d.1] Frequency of abnormal values in tumor markers [Figure 6.2.d.2] Correlation of CEA with CA19-9 [Figure 6.2.d.3] Correlation of DUPAN2 with CA19-9 [Figure 6.2.d.4] Correlation of SPAN1 with CA19-9 [Figure 6.2.d.5] Correlation of CA19-9 and histological classification of intraductal tumors [Figure 6.2.d.6] Correlation of CEA and histological classification of intraductal tumors [Figure 6.2.d.7] Correlation of DUPAN2 and histological classification of intraductal tumors [Figure 6.2.…