Ingestion of carbohydrate or carbohydrate plus protein does not enhance performance during endurance exercise: a randomized crossover placebo-controlled clinical trial - Finger, D.; Lanferdini, F. J.; Farinha, J. B.; Müller Brusco, C.; Helal, L.; Boeno, F. P.; Cadore, E. L.; Pinto, R. S. (Applied Physiology, Nutrition, and Metabolism, 2018)