The study was an investigation of 578 consecutive patients with heart attack due to a coronary artery blockage, who provided information on recent and usual occurrence of symptoms of respiratory infection. (sciencedaily.com)
The study analyzed 578 consecutive patients having heart attack as a result of blockage of coronary arteries, and who provided details on recent and usual occurrence of respiratory infection symptoms. (ahealthblog.com)
Learn common factors that indicate a higher than usual occurrence. (womenandinfants.org)