Time to progression and overall survival for patients according to four factors (in order, top to bottom): debulking surgery or not, residual disease after surgery, type of initial chemotherapy and number of cycles of initial chemotherapy. CP3w, carboplatin and paclitaxel 3-weekly; C3w, carboplatin 3-weekly. Time to progression and overall survival for patients according to four factors (in order, top to bottom): debulking surgery or not, residual disease after surgery, type of initial chemotherapy and number of cycles of initial chemotherapy. CP3w, carboplatin and paclitaxel 3-weekly; C3w, carboplatin 3-weekly. Andrea Milani et al. ESMO Open 2016;1:esmoopen-2016-000117 Copyright © European Society for Medical Oncology. All rights reserved.