“…The results vary, however, several successful cases have been recorded (Viggiani, 1975;Amaro, 1992;Noyes & Hayat, 1994;Katsoyannos, 1996;Tsagarakis, Kalaitzaki, Lykouressis, Michelakis, & Alexandrakis, 1999;Kalaitzaki, 2004;Siscaro, Caleca, Reina, Rizzo, & Zappalà, 2003;Siscaro, Di Franco, & Zappalà, 2008; Gomes da Silva, Borges da Silva, Jacas, Urbaneja, & Viñuela, 2006;Malausa, Rabasse, & Kreiter, 2008;Zappalà, Siscaro, & Longo, 2008). …”