Number of high-protein containing meals correlates with muscle mass in pre-frail and frail elderly - Hayashi, Ana Paula; Capitani, Mariana Dutilh de; Dias, Samara Fernandes; Goncalves, Livia de Souza; Fernandes, Alan Lins; Jambassi-Filho, Jose Claudio; Santana, Davi Alves de; Lixandrao, Manoel; Riani, Luiz; Pereira, Rosa Maria Rodrigues; Gualano, Bruno; Roschel, Hamilton (European journal of clinical nutrition, 2020)