Body composition changes after very low-calorie-ketogenic diet in obesity evaluated by three standardized methods - Gomez-Arbelaez, D; Bellido, D; Castro, A I; Ordoñez-Mayan, L; Carreira, J; Galban, C; Martinez-Olmos, M A; Crujeiras, A B; Sajoux, I; Casanueva, F F (J Clin Endocrinol Metab, 2016)