Holmefur M, Elvrum A-KG, Krumlinde-Sundholm L. The assisting hand assessment for children and youth with brachial plexus birth injury: a study of validity and item hierarchy of AHA-Plex. JRM [Internet]. 2023 Sep. 26 [cited 2024 Nov. 2];55:jrm15325. Available from: https://medicaljournalssweden.se/jrm/article/view/15325