Oh, let thy blood that was shed for me be my salvation!

Surgeons in my time don't pull teeth and let blood.

His only reason for leaving now, he said, is that "it is time to let new blood come in."

Or the valve may become too narrow or stiff to let enough blood through.

When the valve can't let enough blood through, the problem is called stenosis.

A later edition (1653) included an appendix on whether to let blood in smallpox.

He has enough men to let blood when blood needs to be let.

The valves may not let enough blood through because they are too narrowed.

She had been let blood, too; a clean bandage wrapped the crook of her elbow.

Before Maya men went into battle, their wives would often let blood to ensure his success.