Correction to: Preoperative frailty measured by risk analysis index predicts complications and poor discharge outcomes after Brain Tumor Resection in a large multi-center analysis. - Thommen R; Kazim SF; Rumalla K; Kassicieh AJ; Kalakoti P; Schmidt MH; McKee RG; Hall DE; Miskimins RJ; Bowers CA (Journal of neuro-oncology, 2022)