HOXB4 and cervical squamous cell carcinoma: The HOXB4 mRNA expression in 10 normal cervical specimens was 30.6 (9.5–52.7) detected by qRT-PCR, which was higher than the level of 14 specimens of squamous cervical cancer [7.7 (3.3–12.2)] (95% CI, P = 0.0155) (Fig. 1g).