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Walford, R., Lawton, T., Clegg, A. (2022). Geriatric Syndromes: Frailty. In: Flaatten, H., Guidet, B., Vallet, H. (eds) The Very Old Critically Ill Patients. Lessons from the ICU. Springer, Cham. https://doi.org/10.1007/978-3-030-94133-8_11
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