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.
Low-set, strong and sturdily built, the Pembroke Welsh Corgi gives an impression of substance in a small space. He is one of the most agreeable small house dogs, as well as an avid competitor in many dog sports, including conformation, herding and obedience.