Tocilizumab treatment in severe COVID-19: a multicenter retrospective study with matched controls.

Rheumatol Int · 2022 · PMC8436189 · PMID 34515808

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highly significantno p-value reported

However, imbalances between the Study Group and Control Group were highly significant, mainly resulting from the collection of the data of more selected group of patients from the centers which contributed to the Study Group (Table 2 ).

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