Moreno López, J.; Moreno Palacios, J. A.; García Delgado, I.; Díaz-Guardamino, C. E.; Ruiz Sanz, M.; Alcaide Jiménez, A. Type II Avulsion Fracture of Calcaneal Tuberosity (duck beak). Case Series. Rev. Colomb. Ortop. Traumatol. 2018, 32, 197-201.