Companion robots for older adults: Rodgers' evolutionary concept analysis approach. - Jeongeun Kim; Sukwha Kim; Seongheui Kim; Euehun Lee; Yoonjeong Heo; Cheol-Yong Hwang; Yun-Young Choi; Hyoun-Joong Kong; Hyeongju Ryu; Hyeongsuk Lee (Intell. Serv. Robotics, 2021)