preferred_name: Stage IIB Esophageal Squamous Cell Carcinoma AJCC v7
preferred_name_lc: stage iib esophageal squamous cell carcinoma ajcc v7
label: Stage IIB Esophageal Squamous Cell Carcinoma AJCC v7
label_lc: stage iib esophageal squamous cell carcinoma ajcc v7