Table 1. Statistics.

Group comparison	Alveolar septal thickening				Edema				Lung weight
	1 month	3 months	6 months		1 month	3 months	6 months		1 month	3 months	6 months
XRT + isotype vs. XRT + anti-PD-1, P values	NS	NS	NS		NS	NS	NS		NS	NS	NS
XRT vs. no XRT, P values	0.0372, ↑ 03	0.0541, ↑ 05	NS		NS	0.0001, ↑ 00	0.0259, ↑ 0 XRT		NS	0.0065, ↑ 00	0.0243, ↑ 0 XRT
Anti-PD-1 alone vs. isotype alone	NS	NS	NS		NS	NS	NS		NS	NS	NS

NS, not significant; XRT, irradiation.