Gene expression profiling studies on CRC prognosis included in the present study.

*Number of unique, annotated mapped genes obtained by converting the originally reported gene identifiers (IDs) in each single study to the official HUGO gene symbol. p.t., primary tumours; a.m., adjacent mucosa; m., metastasis; A, metastasis yes/no; B, recurrence yes/no; C, survival; D, metastasis vs. primary tumours; E, prognosis good/bad.

通过将各项独立研究中原始报道的基因标识符（ID）转换为官方HUGO基因符号后，所得到的唯一且已注释的映射基因总数。缩写说明如下：p.t. 代表原发性肿瘤（primary tumours）；a.m. 代表癌旁黏膜（adjacent mucosa）；m. 代表转移灶（metastasis）；A 用于标注是否存在转移；B 用于标注是否复发；C 用于标注生存情况；D 用于对比转移灶与原发性肿瘤；E 用于标注预后良好或不良。