Clinical and Prognostic Implications of Estimating Glomerular Filtration Rate by Three Different Creatinine-Based Equations in Older Nursing Home Residents oleh Ersilia Paparazzo, Silvana Geracitano, Vincenzo Lagani, Vincenzo Lagani, Luca Soraci, Annalisa Cozza, Salvatore Cosimo, Francesco Morelli, Andrea Corsonello, Andrea Corsonello, Giuseppe Passarino, Alberto Montesanto