What does PSIA stand for?

What does PSIA mean?

PSIA	Pounds Per Square Inch, Absolute Miscellaneous » Unit Measures
PSIA	Pounds per Square Inch, Absolute Governmental » Transportation
PSIA	Pounds per Square Inch, Absolute Governmental » NASA
PSIA	Private Schools Interscholastic Association Community » Sports
PSIA	Poverty and Social Impact Analysis Governmental » State & Local
PSIA	Penn State Investment Association Business » Professional Organizations
PSIA	Patient Specific Investigative Analysis Medical » Hospitals