What is the meaning of the Medical abbreviation eis?

Abbreviation SEISMED

secure environment for information system in medicine

Abbreviation OEIS

omphalocele, exstrophy, imperforate anus, spinal defects [complex]

Abbreviation NEISS

National Electronic Injury Surveillance System

Abbreviation LEIS

low-energy ion scattering

Abbreviation HEIS

high-energy ion scattering

Abbreviation EIS

Environmental Impact Statement

Abbreviations that look like eis