Reply to the Letter to the Editor by Franco Franchignoni
            
                Esther Duarte
                Physical Medicine and Rehabilitation Department, Hospital de l'Esperanc¸a. IMAS, Sant Josep de la Muntanya 12, ES-08024 Barcelona, Spain. E-mail: eduarte@imas.imim.es
                DOI: 10.1080/16501970310010529                
                                
   
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