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SIASStatutory Inspection of Anglican Schools (UK)
SIASSchool of Indigenous Australian Studies (James Cook University; Australia)
SIASSistema Integral de Atención en Salud (Guatemala)
SIASSociety of Inner Asian Studies (Japan)
SIASSay It Ain't So
SIASStandard Intel Architecture Servers
SIASScandinavian Institute of African Studies
SIASSubmarine Integrated Antenna System
SIASSocioeconomic Impact Analysis Study
SIASStudent Information Access System (Illinois State University)
SIASScanner Interface Assembly Signal
SIASSignal Intelligence Analysis System
SIASSecurities and Investment Advisory Solutions (Milton, MA)