Brief Research ReportPublished 17 June 2026Echocardiography-guided assessment of mouse cardiac transplant rejection improves model reproducibilityAngela Clemens · Sara Alibrandi · Paolo Molinari · Johan Noble · Barbara Franchin · Miguel Fribourg · Paolo Cravedi · Nicholas ChunFrontiers in Transplantationdoi 10.3389/frtra.2026.1840060