A Prospective, Observational Study of the Effect of a High-Calorie, High-Protein Oral Nutritional Supplement with HMB in an Old and Malnourished or at-Risk-of-Malnutrition Population with Hip Fractures: A FracNut Study - Sierra, Teresa Pareja; Torrez, Flavia Lorena Huenicken; Hernandez, Maria Carmen Pablos; Velasco, Rosario Lopez; Gomez, Raquel Ortes; Diaz, Maria del Carmen Cervera; Sanchez, Ana Isabel Hormigo; Ramirez, Beatriz Perdomo; Fernandez, Jesus Mora; Mola, Sonia Jimenez; Pinera, Maria Amparo Rodriguez; Alvarado, Patricia Ysabel Condorhuaman; et al. (NUTRIENTS, 2024)