Nutritional status and functionality in geriatric rehabilitation patients: a systematic review and meta-analysis - Wojzischke, Julia; Wijngaarden, Janneke van; Berg, Claudia van den; Cetinyurek-Yavuz, Aysun; Diekmann, Rebecca; Luiking, Yvette; Bauer, Jürgen M. (European geriatric medicine, 2020)