W. H. Wiyono, R. Febriana, F. Yunus, A. Nawas, and M. Rasmin, “Effectiveness of intravenous clarithromycin followed by oral clarithromycin in acute exacerbation of asthma with respiratory tract infection”, Med J Indones, vol. 16, no. 1, pp. 7-13, Feb. 2007.