4003
Fibroblast growth factor receptor 2 - positive fibroblasts provide a suitable microenvironment for tumor development and progression in esophageal carcinoma .
 Fibroblast growth factor receptor 2 - positive fibroblasts, tumor, esophageal carcinoma
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Fibroblast growth factor receptor 2 - positive fibroblasts, tumor, esophageal carcinoma