| AaPO2, (A-a) PO2 | alveolo-arterial oxygen tension difference |
|---|---|
| BMC | blood mononuclear cell; bone marrow cell; bone mineral content |
| COT | colony overlay test; content of thought; contralateral optic tectum; critical off-time |
| HPX | high peroxidase [content]; hypophysectomized |
| PIC | Personality Inventory for Children; polymorphism information content |