Pantazopoulos, Th., Z. Stavrou, C. Stamos, G. Kehayas, and G. Hartofilakidis-garofalidis. 1975. “Bone Lesions in Pigmented Villonodular Synovitis”. Acta Orthopaedica 46 (4):579-92. https://doi.org/10.3109/17453677508989240.