Gal R, Monninkhof EM, van Gils CH, Groenwold RHH, et al. Effects of exercise in breast cancer patients: implications of the trials within
cohorts (TwiCs) design in the UMBRELLA Fit trial. Breast Cancer Res Treat 2021 Aug 24. pii: 10.1007/s10549-021-06363.
PMID: 34427806