Exo-Abs: A Wearable Robotic System Inspired by Human Abdominal Muscles for Noninvasive and Effort-Synchronized Respiratory Assistance. - Sang-Yoep Lee; Jin-Oh Hahn; Jaewon Beom; Ji-Hong Park; Han Eol Cho; Seong-Woong Kang; Kyu-Jin Cho (IEEE Trans. Robotics, 2022)