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