Association between urinary incontinence in elderly patients and caregiver burden in the City of Sao Paulo/Brazil: health, wellbeing, and ageing study - Tamanini, José Tadeu Nunes; Santos, Jair Lício Ferreira; Lebrão, Maria Lúcia; Duarte, Yeda Aparecida de Oliveira; Laurenti, Ruy (Neurourology and Urodynamics, 2011)