Postoperative complications and mortality following emergency digestive surgery during the COVID-19 pandemic: A multicenter collaborative retrospective cohort study protocol (COVID-CIR)

Madrazo, Zoilo ; Osorio, Javier ; Otero, Aurema ; Biondo, Sebastiano ; Videla, Sebastian

Medicine (Baltimore), 2021-02, Vol.100 (5), p.e24409-e24409 [Periódico revisado por pares]

United States: Lippincott Williams & Wilkins

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