Functional improvement by body-powered 3D-printed prosthesis in patients with finger amputation oleh Min-Yong Lee, MD, MSc, Seung Hak Lee, MD, PhD, Ja-Ho Leigh, MD, MSc, Hyung Seok Nam, MD, PhD, Eun Young Hwang, OT, BSc, Jung Yeon Lee, OT, BSc, Sol Han, OT, MSc, Gangpyo Lee, MD, MSc