Stage 0	Tis	N0	M0
Stage I	T1, T2	N0	M0
Stage II	T3, T4	N0	M0
Stage IIa	T3	N0	M0
Stage IIb	T4a	N0	M0
Stage IIc	T4b	N0	M0
Stage III	Any T	N1, N2, N3	M0
Stage IIIa	T1, T2	N1	M0
	T1	N2a	M0
Stage IIIb	T1, T2	N2b, N3	M0
	T2, T3	N2a	M0
	T3, T4a	N1	M0
Stage IIIc	T3, T4a	N2b, N3	M0
	T4a	N2a	M0
	T4b	N1, N2, N3	M0
Stage IV	Any T	Any N	M1
Stage IVa	Any T	Any N	M1a
Stage IVb	Any T	Any N	M1b
Stage IVc	Any T	Any N	M1c