Fig. 1From: Clinicopathological and prognostic significance of mTOR and phosphorylated mTOR expression in patients with esophageal squamous cell carcinoma: a systematic review and meta-analysisPreferred Reporting Items for Systematic Reviews and Meta-Analyses flow diagram for literature retrieval. ESCC, esophageal squamous cell carcinoma; mTOR, mammalian target of rapamycin; p-mTOR, phosphorylated mammalian target of rapamycinBack to article page