patientid	grade	nodesexam	nodespos	extent	nodalstatus	size	pgr	er
pid00001	3	32	3	10	6	60	2	2
pid00002	2	13	1	10	6	15	1	1
pid00003	3	8	0	10	0	8	1	1
pid00004	3	20	0	10	0	10	2	2
pid00005	2	16	8	10	6	15	2	1
pid00006	3	19	0	10	0	48	1	1
pid00007	3	3	0	10	0	32	2	2
pid00008	2	13	0	10	0	15	1	1
pid00009	3	21	0	10	0	22	1	1
pid00010	2	15	0	10	0	6	2	1