Elevation of serum N-terminal pro-brain natriuretic peptide after exercise is an index of myocardial damage or a cytoprotective reflection? - Faviou, E.; Zachari, A.; Nounopoulos, C.; Agrafiotis, E.; Vourli, G.; Dionyssiou-Asteriou, A. (The Journal of Sports Medicine and Physical Fitness, 2008)