Registro de Citas

Cita APA (7a ed.)
Barr, R. G., Rowe, B. H., & Camargo, C. A. (2003). Methylxanthines for exacerbations of chronic obstructive pulmonary disease: Meta-analysis of randomised trials. BMJ.
Cita Chicago Style (17a ed.)
Barr, R Graham, Brian H. Rowe, y Carlos A. Camargo. "Methylxanthines for Exacerbations of Chronic Obstructive Pulmonary Disease: Meta-analysis of Randomised Trials." BMJ 2003.
Cita MLA (9a ed.)
Barr, R Graham, et al. "Methylxanthines for Exacerbations of Chronic Obstructive Pulmonary Disease: Meta-analysis of Randomised Trials." BMJ, 2003.
Precaución: Estas citas no son 100% exactas.