[Table 8.2.d.1] Frequency of abnormal values in tumor markers [Figure 8.2.d.2] Correlation of CA19-9 and histological classification of endocrine tumors [Figure 8.2.d.3] Correlation of CEA and histological classification of endocrine tumors [Figure 8.2.d.4] Correlation of DUPAN2 and histological classification of endocrine tumors [Figure 8.2.d.5] Correlation of SPAN1 and histological classification of endocrine tumors