TY - RPRT TI - Characterization of surface EMG signals using improved approximate entropy. AU - Wei-ting Chen AU - Zhi-zhong Wang AU - Xiao-mei Ren PY - 2006 DO - 10.1631/jzus.2006.b0844 UR - https://pubmed.ncbi.nlm.nih.gov/16972328/ ID - 16972328 ER -