Aftab, Pervaiz Ahmed, et al. “ASYMMETRICAL MULTIFOCAL GIANT CELL TUMOR OF THE TENDON SHEATH - AN UNCOMMON ENTITY: Multifocal Giant Cell Tumor”.
Pakistan Armed Forces Medical Journal, vol. 57, no. 4, Dec. 2007, pp. 330-1,
https://www.pafmj.org/PAFMJ/article/view/523.