Choong, Peter F M, Helena Willen, Mef Nilbert, Fredrik Mertens, Nils Mandahl, Birgitta Carlen, and Anders Rydholm. “Pigmented Villonodular Synovitis: Monoclonality and metastasis—a Case for Neoplastic Origin?”. Acta Orthopaedica 66, no. 1 (January 1, 1995): 64–68. Accessed May 18, 2026. https://actaorthop.org/actao/article/view/21134.