L. Guarda Nardini, F. Oliviero, R. Ramonda, and G. Ferronato, “Influence of intra-articular injections of sodium hyaluronate on clinical features and synovial fluid nitric oxide levels of temporomandibular osteoarthritis”, Reumatismo, vol. 56, no. 4, pp. 272–277, Dec. 2004.