Low expression of nm23-H1 associates with poor survival of nasopharyngeal carcinoma patients: A prisma-compliant meta-analysis.

Developing a new reliable prognostic marker to predict the prognosis and supply better and more suitable therapy for patients with nasopharyngeal carcinoma (NPC) is urgent. Therefore, we performed this systematic review of the literature with meta-analysis to clarify and explore the associate expression of nm23-H1 with prognosis of NPC patients.