Kafury-Goeta, Álvaro A. et al. 2020. Description of thumb compression and flexion test for the diagnosis of rhizarthrosis. Cross sectional Cohort Study. Revista Colombiana de Ortopedia y Traumatología. 34, 4 (Nov. 2020), 391–395. DOI:https://doi.org/10.1016/j.rccot.2020.09.008.