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{"sheet":"Sheet1","index":0,"n_rows":26,"n_cols":3,"rows_kept":26}
["Characteristics of the dataset"]
["Variables",null,"Case, n"]
["Age"]
[null,"＞65",32]
[null,"≤65",83]
["Gender"]
[null,"Female",16]
[null,"Male",99]
["Grade"]
[null,"G1＆G2",81]
[null,"G3",34]
["Stage"]
[null,"StageI＆II",71]
[null,"StageIII＆IV",44]
["T"]
[null,"T1-2",51]
[null,"T3-4",64]
["M"]
[null,"M0",109]
[null,"M1",6]
["N"]
[null,"NO",57]
[null,"N1-3",58]
["Histology"]
[null,"EAC",35]
[null,"ESCC",80]