Correction to 'Genome instability and pressure on non-homologous end joining drives chemotherapy resistance via a DNA repair crisis switch in triple negative breast cancer'. Issue 3 (22nd September 2021) - Wiegmans, Adrian P; Ward, Ambber; Ivanova, Ekaterina; Duijf, Pascal H G; Adams, Mark N; Najib, Idris Mohd; Van Oosterhout, Romy; Sadowski, Martin C; Kelly, Greg; Morrical, Scott W; O'Byrne, Ken; Lee, Jason S; et al.