
Iris sp.

Isostent for restenosis intervention study

Isostents for Reperfusion Intervention Study

isotope-selective nondispersive infrared spectrometry

Institute of Research on Information Systems

Instituto de Reabilitação e Integração Social

Instruções Reguladoras das Inspeções de Saúde

Integrated Reconfigurable Intelligent Systems

Integrated Rutgers Information System

Interface Réseau Information Service

International Research Initiatives Scheme