Table 1. AXL receptor tyrosine kinase is frequently overexpressed in esophageal adenocarcinomas.

	IHC Index Score
	0 - 1	2	3	* p value
NS	2	5	0	0.0068
EAC	8 (29.6%)	5 (18.5%)	14 (51.8%)

Abbreviations: IHC, immunohistochemistry; NS, normal esophageal squamous epithelial tissue; EAC, esophageal adenocarcinoma tissue

^*The Fisher's exact test to assess the difference in AXL index score between normal and tumor tissue samples