What does PFO stand for?

What does PFO mean?

PFO	Patent Foramen Ovale Medical » Laboratory
PFO	Paphos, Cyprus Regional » Airport Codes
PFO	Parent Faculty Organization Medical » Hospitals
PFO	Preferred Income Opportunity Fund Business » NYSE Symbols
PFO	Personal Freedom Outreach Community » Non-Profit Organizations
PFO	Pre Field Orientation Governmental » Military
PFO	Pacific Food Outlook Community » Non-Profit Organizations
PFO	Positive Feedback Only Community » Educational
PFO	Parent Facility Organization Governmental » Military
PFO	Parent Faculty Organisation Miscellaneous » Unclassified
PFO	Parochialism Fever Outbreak Miscellaneous » Unclassified
PFO	Please F O Miscellaneous » Unclassified
PFO	Patent Fornum Ovalea Miscellaneous » Unclassified
PFO	Principal Federal Official Governmental » FDA
PFO	Prime Focus Business » London Stock Exchange
PFO	perfluorooctane Medical » British Medicine
PFO	pissed, fell over Medical » British Medicine
PFO	patent foramen ovale Medical