Obstructive sleep apnea and acute myocardial infarction severity: ischemic precondition? - Shah, N; Redline, S; Yaggi, H K; Wu, R; Zhao, C G; Ostfeld, R; Menegus, M; Tracy, D; Brush, E; Appel, W D; Kaplan, R C (Sleep Breath, 2013)