Development of Continuous Assessment of Muscle Quality and Frailty in Older Patients Using Multiparametric Combinations of Ultrasound and Blood Biomarkers: Protocol for the ECOFRAIL Study

1. Virto, N.
2. Río, X.
3. Angulo-Garay, G.
4. Molina, R.G.
5. Céspedes, A.A.
6. Zamora, E.B.C.
7. Jiménez, E.G.
8. Córcoles, R.A.
9. Mañas, L.R.
10. Costa-Grille, A.
11. Matheu, A.
12. Marcos-Pérez, D.
13. Lazcano, U.
14. Vergara, I.
15. Arjona, L.
16. Saeteros, M.
17. Lopez-De-Ipiña, D.
18. Coca, A.
19. Soler, P.A.
20. Sanabria, S.J.