Remote assessment and management of physical function in older adults (RAMP): An international expert Delphi process (2026) Via JD, Hurst C, Dent E, Fyfe JJ, Jansons P, Hayes EJ, Sim M, et al. Journal article Assessing cachexia in older patients: Different definitions – But which one is the most practical for clinical routine? (2020) Zopf Y, Schink K, Reljic D, Herrmann HJ, Dieterich W, Kiesswetter E, Sieber C, et al. Journal article, Original article Prediction of one-year mortality by five different frailty instruments: A comparative study in hospitalized geriatric patients (2016) Ritt M, Bollheimer C, Sieber C, Gaßmann KG Journal article Reduced plasmalogen concentration as a surrogate marker of oxidative stress in elderly septic patients (2013) Brosche T, Bertsch T, Sieber C, Hoffmann U Journal article Bioelectric impedance phase angle is associated with hospital mortality of geriatric patients (2010) Wirth R, Volkert D, Roesler A, Sieber C, Bauer J Journal article Reliability analysis of time series force plate data of community dwelling older adults (2010) Bauer C, Gröger I, Rupprecht R, Meichtry A, Tibesku C, Gaßmann KG Journal article, Original article