Article PubMed
Contemporary clinical trials communications  (2017)

The distribution of the modified Rankin scale scores change according to eligibility criteria in acute ischemic stroke trials=> A consideration for sample size calculations when using ordinal regression analysis.

Olavarría, Verónica V; Brunser, Alejandro; Cabral, Norberto; Martins, Sheila; Muñoz-Venturelli, Paula; Cavada, Gabriel; Lavados, Pablo M