Contingency table of observed frequencies for pairs of MeSH descriptors.
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Note: U = MeSH descriptor u, V = MeSH descriptor v, Oij = observed frequency, Ri = row total, Cj = column total, N = grand total. For example, cell O12 refers to the observed frequency of pairs in which descriptor u occurs, but descriptor v does not occur.
创建时间：
2014-07-09
