%0 Journal Article %T Correction: Screening for a new primary cancer in patients with existing metastatic cancer: a retrospective cohort study %D 2018 %R 10.9778/cmajo.20180186 %J CMAJ Open %P E567-E567 %V 6 %N 4 %U https://www.cmajopen.ca/content/cmajo/6/4/E567.full.pdf