Stroke volume stroke volume Stroke volume Stroke volume stroke volume English Stroke volume Stroke volume Stroke volume stroke volume stroke volume Stroke volume stroke volume 英語版 Stroke volume stroke volume Stroke volume stroke volume stroke volume stroke volume Stroke volume stroke volume stroke volume stroke volume stroke volume stroke volume stroke volume stroke volume Stroke volume Stroke volume Stroke volume English stroke volume stroke volume stroke volume English English stroke volume view article Stroke volume volume stroke volume stroke volume https://en.wikipedia.org/wiki/Stroke_volume