Centers for Disease Control and Prevention | Emergency Medicine Clinics of North America |
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National Heart, Lung, and Blood Institute | Frownfelter, Donna; Dean, Elizabeth 2006 |
Kyphoscoliosis — What can we do for respiration besides NIV? Sarkar S, Amelung PJ September 2006 | Warning signs of a heart attack |
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: Mayo Foundation for Medical Education and Research; 2018 | Warning signs of heart failure |