Ferrara, Fabrizio, et al. “Residual Interfragmentary Gap After Intramedullary Nailing of Fragility Fractures of the Humeral Diaphysis: Short and Midterm Term Results”. Acta Biomedica Atenei Parmensis, vol. 90, no. 4, Dec. 2019, pp. 432-8, https://doi.org/10.23750/abm.v90i4.7315.