Voiding dysfunction in patients with Parkinson's disease: Impact of neurological impairment and clinical parameters - Sammour, Zein M.; Gomes, Cristiano M.; Barbosa, Egberto R.; Lopes, Roberto I.; Sallem, Flavio S.; Trigo-Rocha, Flavio E.; Bruschini, Homero; Srougi, Miguel (Neurourology and Urodynamics, 2009)