Additive effect of oxitropium bromide in combination with inhaled corticosteroids in the treatment of elderly patients with chronic asthma

by Koichi Nishimura, Hiroshi Koyama, Kyosuke Ishihara, Tsuyoshi Hasegawa, Satoru Katayama, Akio Nakashima, Takateru Izumi
Published 1999-01-01