Ammonium quantification in human plasma by proton nuclear magnetic resonance for staging of liver fibrosis in alcohol-related liver disease and nonalcoholic fatty liver disease. - Azagra M; Pose E; De Chiara F; Perez M; Avitabile E; Servitja JM; Brugnara L; Ramon-Azcón J; Marco-Rius I (NMR in biomedicine, 2022)