Observational StudyHighlightedMolecular hydrogen as an adjuvant therapy may be associated with increased oxygen saturation and improved exercise tolerance in a COVID-19 patientMHID-5864798PMID: 347652122021Clinical Case ReportsRam B. Singh, Ghazi Halabi, Ghizal Fatima, Richa H. Rai, Alexander T. Tarnava, Tyler W. LeBaronAdministration of molecular hydrogen dissolved in water to patient with COVID-19-like symptoms may improve oxygen levels and exercise capacity.