Supplemental material, sj-docx-1-smo-10.1177_20503121231172348 for Clinicians’ knowledge and attitude towards early mobilization in intensive care units in Ethiopian tertiary hospitals: A multi-centre study by Tasew Kelemu Dagnachew, Yophtahe Woldegerima Berhe, Salh Yalew Mustofa and Wubie Birlie Chekol in SAGE Open Medicine