What does IHA stand for?

Hydrographic Institute of the Chilean Army (SAUS)

Idaho Hospital Association (SRA)

Idiopathic Hyperaldosteronism - Medicine (DMAA)

Idiopathic Hyperplastic Aldosteronism - Endocrinology

I Hate Acronyms - Internet lingo (CHAT)

Illinois Hospital and Health Systems Association (SRA)

Immune Hemolytic Anemia - Medicine

Imperial Highway Authority (SAUO)

Independent Hospitals Association - British (DBA)

Indian Housing Authorities (USGC)

Indian Housing Authority - Department of Housing and Urban Development (GFGA)

Indirect Hemagglutination - Clinical chemistry

Indirect Hemagglutination Antibody - Medicine (DMAA)

Individual Housing Account

Infusion Hepatic Angiography - Medicine

Institute of Hospital Administrators - British (BI)

Institute of Hospital Almoners (SAUO)

Integrated Hazards Assessments - Environmental science (COE)

Integrated Healthcare Association (SAUO)

Intel Hub Architecture

Intercept Hydrophone Array (SAUS)

Interfaith Hunger Appeal (EA)

Interim Housing Allowance - Military (AFM)

International Hackers Association

International Hahnemannian Association - Defunct

International H-Boat Association (SAUO)

International Hedgehog Association (EA)

International Herb Association (NTPA)

International Hopkins Association

International Horse Association (SAUO)

International Hospitals Association (SAUO)

International Hotel Association - Paris, France (EA)

International House Association - Defunct

International Housewares Association (EA)

International Humanitarian Assistance Division - Emergency Management (EMA)

International Huntington Association (NRGU)

Iowa Hospitality Association (SRA)

Issuing Houses Association - British - Defunct (DI)

Reese Hospital and Medical Center, Chicago, IL - OCLC symbol (OCLC)