Building an integrated cardiogeriatric heart failure pathway for very old adults: a four-year community case study from Hôpital La Porte Verte - Rémi Esser; Olivier Maurou; Marine Larbaneix; Alejandro Mondragon; Sophie Balesdent; Maureen Assayag; Marlène Esteban; Christine Farges; Vincenzo Palermo; Sophie Nisse Durgeat; Marc Harboun (Frontiers in Health Services, 2026)