Spinal segment-specific transcutaneous stimulation differentially shapes activation pattern among motor pools in humans. - Sayenko DG; Atkinson DA; Dy CJ; Gurley KM; Smith VL; Angeli C; Harkema SJ; Edgerton VR; Gerasimenko YP (Journal of applied physiology (Bethesda, Md. : 1985), 2015)