APA aipamena

Tsukino, M., Nishimura, K., Ikeda, A., Hajiro, T., Koyama, H., & Izumi, T. (1998). Effects of theophylline and ipratropium bromide on exercise performance in patients with stable chronic obstructive pulmonary disease. BMJ Group.

Chicago Style aipamena

Tsukino, M., K. Nishimura, A. Ikeda, T. Hajiro, H. Koyama, and T. Izumi. Effects of Theophylline and Ipratropium Bromide On Exercise performance in Patients With Stable Chronic Obstructive Pulmonary disease. BMJ Group, 1998.

MLA aipamena

Tsukino, M., et al. Effects of Theophylline and Ipratropium Bromide On Exercise performance in Patients With Stable Chronic Obstructive Pulmonary disease. BMJ Group, 1998.