This article is one of a series sponsored by the American Heart Association, edited by C. Richard Conti, MD.
Reprint requests to Department of Medicine, The Johns Hopkins University School of Medicine, 601 N Broadway, Baltimore, MD 21205 (Dr Greene).
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Intracardiac ECG recording and stimulation are useful to evaluate conduction block, bradyarrhythmias, and tachyarrhythmias whose importance or mechanisms are uncertain from a surface ECG in the symptomatic patient. The technique is safe, with only rare complications. The response to medication can be tested during the procedure, helping to maximize the response to medical therapy.
(JAMA 240:258-260, 1978)
Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature
Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal
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