System design and experimental research of lower esophageal sphincter stimulator for treatment of gastroesophageal reflux disease. - Xin-Chen Sun; Wanjun Tao; Chuan-Qing Zhu; Li-Li Zhao; Min Wang; Xiao-Ying Lü; Zhi-Gong Wang; Zhi-Ning Fan (EMBC, 2017)