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INFO: Full form for HCA is Historic Cost Accounting (!) in Medical category
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Hepatocellular adenoma (also known as hepatic adenoma or hepadenoma) is a rare, benign liver tumor. It most commonly occurs in people with elevated systemic levels of estrogen, classically in women taking estrogen-containing oral contraceptive medication.

INFO: Full form for HCA is Home Care Assistant in Medical category
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Homocysteic acid is a sulfur-containing glutamic acid analog and a potent NMDA receptor agonist. It is related to homocysteine, a by-product of methionine metabolism.

INFO: Full form for HCA is Hospital Caterers Association (!) in Medical category
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Hürthle cell adenoma is a rare benign tumor, typically seen in women between the ages of 70 and 80 years old. This adenoma is characterized by a mass of benign Hürthle cells (Askanazy cells). Typically such a mass is removed because it is not easy to predict whether it will transform into the malignant counterpart, a subtype of follicular thyroid cancer called a Hürthle cell carcinoma.

INFO: Full form for HCA is Hybrid Capture Assay in Medical category
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INFO: Full form for HCA is H?thle cell adenoma in Medical category
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INFO: Full form for HCA is Health Care Aid in Medical category
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INFO: Full form for HCA is High Content Analysis in Medical category
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INFO: Full form for HCA is Hospitals Corporation of America in Medical category
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INFO: Full form for HCA is Heterocyclic Amines in Medical category
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INFO: Full form for GAAB is Gender Assigned At Birth in Medical category
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INFO: Full form for FUWB is Fresh Unrefrigerated Whole Blood in Medical category
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INFO: Full form for GBAA is Greater Baltimore Asthma Alliance in Medical category
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INFO: Full form for EL is Esthetics License in Medical category
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INFO: Full form for EL is Elevated Liver in Medical category
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INFO: Full form for EL is Electro Luminesince in Medical category
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INFO: Full form for EUA is Eastside Urology Associates in Medical category
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INFO: Full form for EUA is Examination Under Anesthetic in Medical category
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INFO: Full form for HL is Haliaetus Leucocephalus in Medical category
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Hearing loss is a partial or total inability to hear. Hearing loss may be present at birth or acquired at any time afterwards. Hearing loss may occur in one or both ears. In children, hearing problems can affect the ability to acquire spoken language, and in adults it can create difficulties with social interaction and at work. Hearing loss can be temporary or permanent. Hearing loss related to age usually affects both ears and is due to cochlear hair cell loss. In some people, particularly older people, hearing loss can result in loneliness. Deaf people usually have little to no hearing.

Hearing loss may be caused by a number of factors, including: genetics, ageing, exposure to noise, some infections, birth complications, trauma to the ear, and certain medications or toxins. A common condition that results in hearing loss is chronic ear infections. Certain infections during pregnancy, such as cytomegalovirus, syphilis and rubella, may also cause hearing loss in the child. Hearing loss is diagnosed when hearing testing finds that a person is unable to hear 25 decibels in at least one ear. Testing for poor hearing is recommended for all newborns. Hearing loss can be categorized as mild (25 to 40 dB), moderate (41 to 55 dB), moderate-severe (56 to 70 dB), severe (71 to 90 dB), or profound (greater than 90 dB). There are three main types of hearing loss: conductive hearing loss, sensorineural hearing loss, and mixed hearing loss.

About half of hearing loss globally is preventable through public health measures. Such practices include immunization, proper care around pregnancy, avoiding loud noise, and avoiding certain medications. The World Health Organization recommends that young people limit exposure to loud sounds and the use of personal audio players to an hour a day in an effort to limit exposure to noise. Early identification and support are particularly important in children. For many, hearing aids, sign language, cochlear implants and subtitles are useful. Lip reading is another useful skill some develop. Access to hearing aids, however, is limited in many areas of the world.

As of 2013 hearing loss affects about 1.1 billion people to some degree. It causes disability in about 466 million people (5% of the global population), and moderate to severe disability in 124 million people. Of those with moderate to severe disability 108 million live in low and middle income countries. Of those with hearing loss, it began during childhood for 65 million. Those who use sign language and are members of Deaf culture may see themselves as having a difference rather than a disability. Many members of Deaf culture oppose attempts to cure deafness and some within this community view cochlear implants with concern as they have the potential to eliminate their culture. The terms hearing impairment or hearing loss are often viewed negatively as emphasizing what people cannot do, although the terms are still regularly used when referring to deafness in medical contexts.

The circumflex is a diacritic in the Latin and Greek scripts that is used in the written forms of many languages and in various romanization and transcription schemes. It received its English name from Latin: circumflexus "bent around"—a translation of the Greek: περισπωμένη (perispōménē). The circumflex in the Latin script is chevron-shaped (ˆ), while the Greek circumflex may be displayed either like a tilde (˜) or like an inverted breve ( ̑ ).

In English, the circumflex, like other diacritics, is sometimes retained on loanwords that used it in the original language (for example, crème brûlée).

A similar symbol, the caret (‸) is used below the baseline in proofreading to indicate insertion. The freestanding circumflex (see below), ^, is used in computer programming (where it is given the name 'caret').

In mathematics and statistics, the circumflex is used to denote a function and is called a hat operator.

INFO: Full form for GOAT is Generation Of Anti Tobacco in Medical category
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