Schuetz, P., Briel, M., Dürring, U., Müller, B., Schindler, C., & Viatte, S. (2010). Short versus conventional term glucocorticoid therapy in acute exacerbation of chronic obstructive pulmonary disease. Swiss Medical Weekly, 140(4142), w13109. https://doi.org/10.4414/smw.2010.13109