Program Information File Prototype Integration Facility Pacific Islands Forum peak inspiratory flow Process Interchange Format Paid In Full Payload Integration Facility Personal Communications Services Industry Forum Picture Interchange Format Place in Inactive File problem identification flag problem identification form productivity investment fund Project Initiation Form prostatic interstitial fluid Provision of Industrial Facilities Public Inspection File Aeroservicios California Pacifico P instability Factor Pacific Islands Families PAINEWEBBER PREMIER INSURED MUNICIPAL INCOME FUND, INC. Parity Inner Fails Parity Inner Failure parotid isoelectric focusing parotid isoelectric focusing variant Participation Information Form parvovirus initiation factor patient indicator form patient information file Pay It Forward Peace Implementation Force peak inspiratory flow rate Pending Issue File Peripheral Interchange Format Personal Identification Feature Personnel Identification Feature Personnel Information File phagocytosis-inducing factor Phase Interface Fading photochemically-induced fluorescence