Hand bone loss measured by digital X-ray radiogrammetry is a predictor of joint damage in early rheumatoid arthritis.
Forslind K, Boonen A, Albertsson K, Hafström I, Svensson B; Barfot Study Group.Scand J Rheumatol. 2009 Nov-Dec;38(6):431-8. doi: 10.3109/03009740902939376.PMID: 19922017 Clinical Trial.