Berlin A, Simon D, Tascilar K, Figueiredo C, Bayat S, Finzel S, Klaus E, Rech J, Hueber AJ, Kleyer A, et al. The ageing joint-standard age- and sex-related values of bone erosions and osteophytes in the hand joints of healthy individuals. Osteoarthr Cartil (2019) 27:1043–1047. doi:10.1016/j.joca.2019.01.019