“Bilateral Ptosis As a Presenting Feature of Primary Hypertrophic Osteoarthropathy (pachydermoperiostosis): A Case Report”. Reumatismo 66, no. 3 (November 6, 2014): 249–253. Accessed August 25, 2025. https://www.reumatismo.org/reuma/article/view/reumatismo.2014.726.