[\'niversity of São Paulo - Hospital de Clínicas, São Paulo, Brazil. paulo.lins@hc.fm.usp.br.\', \'niversity of São Paulo - Hospital de Clínicas, São Paulo, Brazil.\']
Cov-hep study: heparin in standard anticoagulation based on citrate for continuous veno-venous hemodialysis in patients with COVID-19: a structured summary of a study protocol for a randomized controlled trial.