La Porta E, Lanino L, Calatroni M, Caramella E, Avella A, Quinn C, Faragli A, Estienne L, Alogna A, Esposito P. Volume Balance in Chronic Kidney Disease: Evaluation Methodologies and Innovation Opportunities. Kidney Blood Press Res. 2021;46(4):396-410. doi: 10.1159/000515172. Epub 2021 Jul 7. PMID: 34233334.