Protocol validation for people with venous ulcers: a quantitative study - Assunção, Isabelle Katherinne Fernandes Costa; Medeiros, Lays Pinheiro de; Dias, Thalyne Yurí Araújo Farias; Salvetti, Marina de Goes; Dantas,Daniele Vieira; Torres, Gilson de Vasconcelos (Online Brazilian Journal of Nursing, 2016)