Incidence of acute radiation pneumonitis (aRPs) in in patients with prior receipt of immune checkpoint inhibitors.~Risk factors (especially analysis of the dosimetric risk factor) which may affect the product of aRPs events.~Establish a model to predict aRPs and guide clinical treatment.
The purpose of this non-interventional study is to collect data on the risk factors for acute radiation pneumonitis in patients with prior receipt of immune checkpoint inhibitors.