Correction: Surgery of the primary tumor in patients with de novo metastatic breast cancer: a nationwide population-based retrospective cohort study in Belgium.

Brandão M, Martins-Branco D, De Angelis C, Vuylsteke P, Gelber RD, Van Damme N, van Walle L, Ferreira AR, Lambertini M, Poggio F, Verhoeven D, Barbeaux A, Duhoux FP, Wildiers H, Caballero C, Awada A, Piccart-Gebhart M, Punie K, de Azambuja E