1. Federal University of Rio Grande do Norte; Department of Physical Therapy; Natal Rio Grande do Norte Brazil
2. Federal University of Minas Gerais; Rehabilitation Science Program; Belo Horizonte Brazil
3. c/o Cochrane Airways Group; London UK
4. Federal University of Rio Grande do Norte; PhD Program in Physical Therapy; Avenida Senador Salgado Filho, 300 Bairro Lagoa Nova Natal Rio Grande do Norte Brazil 59078-970