Reliability of ultrasound assessment of the rectus femoris muscle thickness: intra-rater, inter-rater, and inter-day analysis accounting for age and sex. - Stausholm, Martin Bjørn; da Silva, Katielle Rodrigues; Inácio, Pedro Augusto; de Sá Filho, Alberto Souza; Lopes-Martins, Pedro Sardinha Leonardo; Bjordal, Jan Magnus; Leonardo, Patrícia Sardinha; Lopes-Martins, Rodrigo Alvaro B. (BMC Musculoskeletal Disorders, 2024)