Iron 'ElectriRx' man: Overground stepping in an exoskeleton combined with noninvasive spinal cord stimulation after paralysis. - Parag N. Gad; Yury P. Gerasimenko; Sharon Zdunowski; Dimitry Sayenko; Piia Haakana; Amanda Turner; Daniel Lu; Roland R. Roy; V. Reggie Edgerton (EMBC, 2015)