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In the verification of the Hubble law for the expansion of the universe and the determination of the constant H0, the greatest difficulty has been
Wound Culture
A laboratory test involving the growth of microorganisms from a wound to identify infections.
Culturette Tube
A sterile, compact device used for collecting and transporting microbiological samples to a laboratory for culture.
Hearing Deficit
A reduction in the ability to perceive sound, which can range from mild hearing loss to total deafness, affecting one or both ears.
Presbycusis
Age-related hearing loss, gradually occurring in both ears, primarily affecting the ability to hear high-frequency sounds.
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