International Packet Switched Service
International Prognostic Scoring Syste…
Initial Pre-Planned Supply Support
Internal Packet Switching System
International Packet-Switched System
International PSS
Image Processing SubSystem
Indian Policy and Support Services
Inferior petrosal sinus sampling
inferior petrosal sinuses
Inflight Passenger Service Specialist
Initial Preplanned Supply Support
Initial Provisioning Support System
Integrated Planning and Scheduling Sys…
International Packet Switch Stream
International Packet Switching Service
International Packet Switching System
International Pilot Study of Schizophr…
International Power Sources Symposium
International Prostate Symptom Score
International Prostate Symptom Scores
International Prostate Symptoms Score
international prostatic symptom score
International Prostatic Symptoms Score
Inter-Processor Signaling System
Intrusion Prevention Systems
Integrated Parts Statusing System
Integrated Project Scheduling System