In the second experiment, the mean percentage of difference between the two replicate measurements and the respective mean value for 17 NE tumor samples and 4 control samples (2 non-neuroendocrine tumors and 2 normal tissues) was: 4.0% (NE tumors) or 3.8% (control samples) for B2M, 4.8% (NE tumors) or 5.8% (control samples) for CYYR1 CAG-, and 16.2% (13 NE tumors) or 13.1% (control samples) for CYYR1 CAG+. Here, CYYR1 is linked to neuroendocrine neoplasm.