%0 Journal Article %T TwiC or treat? Are trials within cohorts ethically defensible? %A Charles Weijer %A Cory E Goldstein %A Monica Taljaard %J Clinical Trials %@ 1740-7753 %D 2018 %R 10.1177/1740774517746622 %U https://journals.sagepub.com/doi/full/10.1177/1740774517746622