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The efficacy of a blended intervention to improve physical activity and protein intake for optimal physical recovery after oncological gastrointestinal and lung cancer surgery, the Optimal Physical Recovery After Hospitalization (OPRAH) trial: study protocol for a randomized controlled multicenter trial.
de Leeuwerk M, de Groot V, Dam ST, Kruizenga H, Weijs P, Geleijn E, van der Leeden M, van der Schaaf M; OPRAH consortium. de Leeuwerk M, et al. Trials. 2023 Nov 27;24(1):757. doi: 10.1186/s13063-023-07705-2. Trials. 2023. PMID: 38008734 Free PMC article.