1.   Doctors concluded that Valestrino suffered from a chronic deficiency in his immune system, which could be controlled by a drug made from human plasma.

2.   Each team combines an impressive strength with a chronic deficiency.

3.   Intravenous immune globulin is used by tens of thousands of people with chronic deficiencies in their immune system and other disorders.

4.   The drug is used by tens of thousands of patients with chronic deficiencies in their immune systems and other disorders.

5.   The acute damage to the brain may lead to chronic deficiencies that could take years to develop, he said.