DOI:
10.1055/s-00000059
Pneumologie
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References
Zhou Y, Wang X, Zeng X. et al.
Positive benefits of theophylline in a randomized, double-blind, parallel-group, placebo-controlled study of low-dose, slow-release theophylline in the treatment of COPD for 1 year.
Respirology 2006;
11: 603-610
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