PFO may refer to: Patent foramen ovale – a blood-flow pathway between a human heart's atriums, normally naturally closed after birth Personal Freedom Outreach – an Evangelical organization opposing cults Pittsburgh Film Office IATA code for Paphos International Airport Pathfinder Roleplaying Game – online version Persistent felony offender – a defendant accused under a three-strikes law Hong Kong's Public Finance Ordinance
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PFO may refer to: Patent foramen ovale – a blood-flow pathway between a human heart's atriums, normally naturally closed after birth Personal Freedom Outreach – an Evangelical organization opposing cults Pittsburgh Film Office IATA code for Paphos International Airport Pathfinder Roleplaying Game – online version Persistent felony offender – a defendant accused under a three-strikes law Hong Kong's Public Finance Ordinance