When consolidating DLBCL with radiotherapy, do you treat all originally involved sites, or just initially bulky and partial responder sites?

When consolidating DLBCL with radiotherapy, several parameters must be taken into consideration.

a) Is radiation therapy part of the treatment plan "on top" of full systemic treatment because of a certain risk situation due to not-optimal response of disease to systemic treatment (for example, FDG-a...