The effect of collagen coating on titanium with nanotopography on invitro osteogenesis - Costa, Daniel G.; Ferraz, Emanuela P.; Abuna, Rodrigo P. F.; Oliveira, Paulo Tambasco de; Morra, Marco; Beloti, Márcio Mateus; Rosa, Adalberto Luiz (Journal of Biomedical Materials Research. Part A, 2017)