In this, each envelope has a job; when, for instance, the out - to - eat envelope is empty, that's it until the next regular infusion. (debt.org)
Augmentation therapy involves regular infusions of purified AAT protein to raise the level of the protein in the blood and lungs. (sciencedaily.com)
Today, hemophiliacs are treated with regular infusions of the clotting factors their bodies are unable to make, which are manufactured from donated blood. (discovermagazine.com)