Value of additional two-hour myoglobin for the diagnosis of myocardial infarction in the emergency department. - Polancyzk CA; Lee TH; Cook EF; Walls R; Wybenga D; Johnson PA; Polanczyk, C A; Lee, T H; Cook, E F; Walls, R; Wybenga, D; Johnson, P A (American Journal of Cardiology, 1999)