RT Journal Article SR Electronic T1 Correction: Ultrasound assessment of degenerative muscle sarcopenia: the University of Barcelona ultrasound scoring system for sarcopenia JF RMD Open JO RMD Open FD EULAR SP e002779corr2 DO 10.1136/rmdopen-2022-002779corr2 VO 9 IS 1 YR 2023 UL http://rmdopen.bmj.com/content/9/1/e002779corr2.abstract AB