DOI:
10.1055/s-00030576
Revista Brasileira de Ginecologia e Obstetrícia / RBGO Gynecology and Obstetrics
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References
Vittinghoff E, McCulloch CE.
Relaxing the rule of ten events per variable in logistic and Cox regression.
Am J Epidemiol 2007;
165 (06) 710-718 . Doi: 10.1093/aje/kwk052
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