Development and validation of a predictive score for anterograde crossing of infrapopliteal chronic total occlusions: (The Infrapop-CTO Score).
Kokkinidis DG, Strobel A, Jawaid O, Haider MN, Alvandi B, Singh GD, Laird JR, Waldo SW, Armstrong EJ. Development and validation of a predictive score for anterograde crossing of infrapopliteal chronic total occlusions: (The Infrapop-CTO Score). Catheter Cardiovasc Interv. 2020 03 01; 95(4):748-755.