Irradiated blood products are used to prevent graft-vs-host disease in patients at risk. Many attempts have been made to develop blood substitutes using inert chemicals (eg, perfluorocarbons) or Hb solutions to carry and deliver oxygen to tissues.
Temperament. The Pembroke Welsh Corgi is highly intelligent, loyal, able and willing to please its owner. Corgis are extremely active and are good with children so long as the dog sees humans as above him in the pack order. Protective and sturdy, they make fine guards, and excellent show and obedience dogs.
The word Corgi is (or at least was) commonly used in South Wales, not only to denote a breed of dog peculiar to those parts, but much in the same way as the word rascal is used, though in the playful and affectionate sense rather than as a term of reproach. One dictionary defines Corgi as a saucy dog - a cur.