Biological age acceleration and extrahepatic multimorbidity in U.S. adults with metabolic dysfunction-associated steatotic liver disease: a national cross-sectional study - Ogbu, Chukwuemeka; Khokhar, Zuhaib; Agbakoba, George; Ogbu, Stella; Bilal, Anas; Ozumba, Sara; Ezeani, Chukwunonso; Umerah, Chinazor; Okafor, Philip (Clinical and Experimental Hepatology, 2026)