Chronic obstructive pulmonary disease and β-blocker treatment in Asian patients with heart failure

on behalf of the ASIA-HF Study investigators, Yoshiaki Kubota, Wan Ting Tay, Kuniya Asai, Koji Murai, Ikutaro Nakajima, Nobuhisa Hagiwara, Takanori Ikeda, Takashi Kurita, Tiew Hwa Katherine Teng, Inder Anand, Carolyn S.P. Lam, Wataru Shimizu