Standardizing physical function across assessment types: Three versions of the physical performance test were linked to the PROMIS physical function metric in diverse populations. - Brinker AY; Buttgereit F; Heißel A; Köllner V; Müller-Werdan U; Bindseil S; Reinhold LM; Winkler J; Aykac V; Schneider U; Fischer F; Rose M; et al. (Journal of clinical epidemiology, 2026)