Cardiac reserve by 6-minute walk stress echocardiography in systemic sclerosis
Miharu Arase, Kenya Kusunose, Sae Morita, Natsumi Yamaguchi, Yukina Hirata, Susumu Nishio, Yuichiro Okushi, Takayuki Ise, Takeshi Tobiume, Koji Yamaguchi, Daiju Fukuda, Shusuke Yagi, Hirotsugu Yamada, Takeshi Soeki, Tetsuzo Wakatsuki, Masataka Sata
Open Heart Feb 2021, 8 (1) e001559; DOI: 10.1136/openhrt-2020-001559