Michels F, Matricali G, Guillo S, Vanrietvelde F, Pottel H, Stockmans F. An oblique fibular tunnel is recommended when reconstructing the ATFL and CFL. Knee Surg Sports Traumatol Arthrosc. 2020 Jan;28(1):124-131. doi: 10.1007/s00167-019-05583-3. Epub 2019 Jun 25. PMID: 31240379.