Serum Hydrogen Sulfide and Outcome Association in Pneumonia by the SARS-CoV-2 Coronavirus.

"Competing interests: E.J. Giamarellos-Bourboulis has received honoraria from AbbVie USA, Abbott CH, InflaRx GmbH, MSD Greece, XBiotech Inc. and Angelini Italy; independent educational grants from AbbVie, Abbott, Astellas Pharma Europe, AxisShield, bioMérieux Inc, InflaRx GmbH, and XBiotech Inc.; and funding from the FrameWork 7 program HemoSpec (granted to the National and Kapodistrian University of Athens), the Horizon2020 Marie-Curie Project European Sepsis Academy (granted to the National and Kapodistrian University of Athens), and the Horizon 2020 European Grant ImmunoSep (granted to the Hellenic Institute for the Study of Sepsis)."

"Sources of funding: G. Renieris is funded from the European Union's Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement grant European Sepsis Academy (agreement No 676129). The study is funded by the Hellenic Sepsis Study Group."