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Table 3 Group staging according to each TNM system

From: Staging of lung cancer in a tertiary care setting in Sri Lanka, using TNM 7th edition. A comparison against TNM6

Stage

TNM 7

TNM 6

IA

2

2

IB

3

3

IIA

0

1

IIB

3

3

IIIA

9

9

IIIB

10

25

IV

35

19