Table 1.

PICOS inclusion criteria

Population	Case reports of the abscopal effect published before September 26, 2019.
Intervention	Clearly defined cancer therapy at time of abscopal response and prior courses of treatment (eg, radiation therapy, immunotherapy, chemotherapy, target therapy).
Control	None.
Outcomes	Overall and progression-free survival. Time from treatment until abscopal response and time from abscopal response until progression or death were calculated. For overall and progression-free survival, the start time was calculated from the time of abscopal effect.
Study design	Case reports and case series published in the English literature.

Abbreviation: PICOS = Population, Intervention, Control, Outcome, Study.