Fig. 1From: The NETest liquid biopsy is diagnostic for gastric neuroendocrine tumors: observations on the blood-based identification of microscopic and macroscopic residual diseaseStandards for Reporting of Diagnostic Accuracy (STARD) flow chart. Index test is represented by the NETest assay undertaken in blood. Reference tests were the standard imaging and histological examinations in the follow-up of GNENs described in more detail in paragraphs: Disease evaluation by imaging and Histological evaluationBack to article page