The formula of coincidencefrequency is established and the methods for increasing coincidencefrequency are discussed. The conclusion is of some value in theory and practice.
建立了符合频率公式并讨论了提高符合频率的方法，其结论具有一定的理论价值和实用价值。
2
Consistent adverse effects reported in smallpox vaccinees have been myopericarditis and dilated cardiomyopathy; the frequency of each adverse effect exceeds what might have occurred by coincidence.