Lancet (London, England) FAST-Forward Trial Management Group 2020, ' Hypofractionated breast radiotherapy for 1 week versus 3 weeks (FAST-Forward) : 5-year efficacy and late normal tissue effects results from a multicentre, non-inferiority, randomised, phase 3 trial ', Lancet (London, England), vol. 395, no. 10237, pp. 1613-1626 . https://doi.org/10.1016/S0140-6736(20)30932-6