Situational study of seven Latin-American journals of pneumology
Manuel Oyarzún Gómez , Alejandra Ramírez Venegas , Adalberto Agüero Fernández , José Antonio Baddini- Martínez , Mary Bermúdez Gómez , Jorge O Cáneva , Jaime E Morales Blanhir , Néstor Ruiz Jiménez , Pérez-Padilla, Rogelio