Sudden cardiac deaths and ventricular extrasystoles on days with four levels of geomagnetic activity
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Four hundred and eighty sudden deaths were studied on 4009 consecutive days from 1976-1986, according to each of 4 levels of geomagnetic activity. Ventricular extrasystoles (VPCs) recorded by 24-hour Holter monitoring were studied on 364 days. 211 cardiac outp... ...
