1		2976
1	?????	4
1	ECMO	3
1	no	736
1	oxygen therapy	362
1	ventilated	32
2		2974
2	?????	4
2	ECMO	3
2	no	733
2	oxygen therapy	362
2	ventilated	32
3		17
3	no	7
3	oxygen therapy	7
4		1