closed head injury
Chicago Pneumatic
Consolidated Health Informatics
CHI Corporation
Computer Human Interaction
computer human interface
Computer-human interaction
Concentration Highway Interface
Consumer Health Information
creatinine height index
Calamos Convertible Opportunities and…
Cambridge Healthtech Institute
Catastrophic Health Insurance
caudate head index
Center for Health Improvement
Centre for Health Informatics
CERN Host Interface
CH2M Hill Hanford, Inc.
chalcone flavanone isomerase
chalcone isomerase
Charlson Index
chemical hazards index
Chicago Bulls
Chicago District Office
Children's Health Initiative
Children's Hospice Internatinal
Children's Hospice International
chimera
Chinese
chitinase