Aberrant microRNA expression in gastric cancer. A: Flowchart of the data analysis to identify poor-prognosis C1-specific microRNAs. Four microRNAs (miR-196b, miR-135b, miR-93, and miR-29c*) were selected; B: Expression patterns of the four microRNAs are shown in a heat map for C1, C2, and non-cancer gastric tissues. The color yellow represents relatively high expression levels and blue reflects relatively low levels.