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A decrease in blood supply to an organ or tissue caused by constriction or blockage of blood vessels.
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The American Speech-Language-Hearing Association (ASHA) is the national professional, scientific, and credentialing association for 211,000 members and affiliates who are audiologists; speech-language pathologists; speech, language, and hearing scientists; audiology and speech-language pathology support personnel; and students.
The ASHA Action Center welcomes questions and requests for information from members and non-members.
Available 8:30 a.m.–5:00 p.m. ET Monday–Friday
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