L. A. Pramono, D. Larasati, Y. Yossy, D. S. Harbuwono, and S. Soebardi, “Recurrent Bilateral Staghorn Stones as a Manifestation of Primary Hyperparathyroidism due to Parathyroid Adenoma”, Acta Med Indones, vol. 47, no. 4, Dec. 2015.