The Baylor Hospital plan, started in 1929, laid the foundation for modern health insurance in the US. This was a _____ plan

The initial exposure of an individual to an antigen is referred to as what?

A) Allergy B) Sensitization C) Hypersensitivity D) Active immunity

Abdominal pain that is originating in a region other than where it is felt is known as:

A) referred pain. B) somatic pain. C) visceral pain. D) Kehr's sign.