Ungcharoensuk, J.; Tantisuk , W. .; khawinpat, P. .; Sungoum, C. . The effectiveness of an innovative lift and transfer wheelchair for the elderly in reducing ergonomic risks in caregivers in Bang Phli Yai sub-district, Bang Pli district, Samut Prakarn province. HE.J. 2023, 2, 1-16.