Prolonged-release pirfenidone in patients with pulmonary fibrosis as a phenotype of post-acute sequelae of COVID-19 pneumonia. Safety and efficacy

Raúl H. Sansores, Alejandra Ramírez‐Venegas, Francisco Montiel-López, S. Domínguez-Arellano, Luis Felipe Alva-López, Ramcés Falfán‐Valencia, Gloría Pérez-Rubio, Enrique E Olaya-López, Elí Omar Zavaleta-Martínez, S. Aguilar-Medina, Jennifer del Carmen Escobar-Alvarado, Jorge Luis Poo, MG Matera, Mario Cazzola