Gu, Wanjun, et al. “Development of a Novel Radiographic Angle to Assess the Calcaneal Tuberosity Enlargement in Insertional Achilles Tendinopathy”. Journal of the Foot & Ankle, vol. 19, no. 3, Jan. 2026, p. 7, doi:10.30795/jfootankle.2025.v19.1912.