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Bogdan, Miron A., Hisamichi Aizawa, Yoshinosuke Fukuchi, Michiaki Mishima, Masaharu Nishimura, و Masakazu Ichinose. Efficacy and Safety of Inhaled Formoterol 4.5 and 9 μg Twice Daily in Japanese and European COPD Patients: Phase III Study Results. BioMed Central, 2011.

Bogdan, Miron A., et al. Efficacy and Safety of Inhaled Formoterol 4.5 and 9 μg Twice Daily in Japanese and European COPD Patients: Phase III Study Results. BioMed Central, 2011.