“…A survey of academic thoracic radiation oncologists in 2017 showed that all respondents offered cTRT, although there was significant variation in contexts and scenarios in which cTRT was offered. 22 A survey of Canadian radiation oncologists found that 88% of respondents would offer cTRT to eligible patients. 23 In our study of predominantly community oncology centers, we showed that only a small minority of patients who survived for at least 90 days after systemic therapy received cTRT since the CREST trial publication (<21% of eligible patients in each year).…”