Location of reference electrode does not interfere on electromyographic parameters in the domains of time and frequency - Guirro, Rinaldo Roberto de Jesus; Soares, Alcimar Barbosa; Guirro, Amanda Caldeira; Simieli, Camila; Boratino, Alessandra Vairo Peres; Carvalho, Gabriela de; Gobbi, Aline; Guirro, Elaine Caldeira de Oliveira (Journal of Medical Systems, 2018)