Boitsios, Grammatina, et al. “Bilateral Precalcaneal Congenital Fibrolipomatous Hamartomas in an Eleven-Week-Old Infant: A Case Report of Characteristic Ultrasound Findings”. Swiss Journal of Radiology and Nuclear Medicine, vol. 36, no. 1, Nov. 2026, pp. 1–6, https://doi.org/10.59667/sjoranm.v36i1.14.