Clinical data for colorectal cancer patients undergoing bevacizumab treatment. HOXB9 mRNA expression levels were evaluated in triplicate by qRT-PCR in patients who showed recurrence after surgery and were treated by chemotherapy combined with bevacizumab (a and b) Kaplan-Meier curves of colorectal cancer patients, according to HOXB mRNA expression. Progression-free survival (a) and overall survival (b). p values by the log rank test. (c) IL6 mRNA expression in colorectal cancer specimens. Error bars are SDs. P values by the U-test and log rank test.