Nakada, L.N. et al. 2020. Ultrasonography findings in knee osteoarthritis: a prospective observational cross-sectional study of 100 Patients. Revista de Medicina. 99, Suppl (nov. 2020), 4–4. DOI:https://doi.org/10.11606/issn.1679-9836.v99iSupplp4-4.