Retrospective observational study of trends in hospital admissions for idiopathic pulmonary fibrosis in Spain (2004–2013) using administrative data
Fernando Pedraza-Serrano, Ana López de Andrés, Rodrigo Jiménez-García, Isabel Jiménez-Trujillo, Valentín Hernández-Barrera, Gema Sánchez-Muñoz, Luis Puente-Maestu, Javier de Miguel-Díez
BMJ Open Feb 2017, 7 (2) e013156; DOI: 10.1136/bmjopen-2016-013156