Reply to Letter to the Editor “Sarcopenia: The importance of formulas” E. García-Menéndez, J. Portolés, A. Muñoz-Sánchez, A. Tato Ribera, C. Yuste Lozano, M. Ossorio González, P. López-Sánchez, D. Janeiro Marín

Use of estimated glomerular filtration formulas for dose adjustment Rosario Montañés-Bermúdez, Sílvia Gràcia-Garcia

Definition and evolution of the concept of sarcopenia Maria Luz Sanchez-Tocino, Secundino Cigarrán, Pablo Ureña, Maria Luisa González-Casaus, Sebastian Mas-Fontao, Carolina Gracia-Iguacel, Alberto Ortíz, Emilio Gonzalez-Parra