Patterns of care and outcomes in elderly patients with glioblastoma in Sao Paulo, Brazil: A retrospective study - Pontes, Luciola de Barros; Loureiro, Luiz Victor Maia; Koch, Ludmila O.; Karnakis, Theodora; Guendelmann, Rafael Aliosha Kalilks; Weltman, Eduardo; Malheiros, Suzana Maria Fleury (Journal of Geriatric Oncology, 2013)