Effect of a protein supplement on the gut microbiota of endurance athletes: A randomized, controlled, double-blind pilot study - Moreno-Pérez D; Bressa C; Bailén M; Hamed-Bousdar S; Naclerio F; Carmona M; Pérez M; González-Soltero R; Montalvo-Lominchar MG; Carabaña C; Larrosa M (Nutrients, 2018)