Feinleib M, Rogot E, Sturrock P A
Int J Epidemiol. 1975 Sep;4(3):227-9. doi: 10.1093/ije/4.3.227.
Mortality from all causes, from coronary heart disease, and from stroke in the US was studied in relation to solar activity as measured by the geomagnetic index, Ap, on a daily basis for the years 1964-66 and on a monthly basis for the years 1964-71. The data did not support previous assertions by Soviet researchers of an association between solar activity and cardiovascular mortality.
1964年至1966年期间，以每日为基础，1964年至1971年期间，以每月为基础，研究了美国所有原因、冠心病和中风导致的死亡率与通过地磁指数Ap衡量的太阳活动之间的关系。数据不支持苏联研究人员此前关于太阳活动与心血管疾病死亡率之间存在关联的断言。
