Erratum to: 'Phase II/III weekly nab-paclitaxel plus gemcitabine or carboplatin versus gemcitabine/carboplatin as first-line treatment of patients with metastatic triple-negative breast cancer (the tnAcity study): study protocol for a randomized controlled trial. Issue 1 (December 2016) - Yardley, Denise; Brufsky, Adam; Coleman, Robert; Conte, Pierfranco; Cortes, Javier; Glück, Stefan; Nabholtz, Jean-Mark; O'Shaughnessy, Joyce; Beck, Robert; Ko, Amy; Renschler, Markus; Barton, Debora; et al.