Centers for Disease Control and Prevention (CDC). Too Loud! For Too Long! Loud noises damage hearing.

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Centers for Disease Control and Prevention (CDC). Hearing Difficulties Among Adults: United States.

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Department of Defense (DoD). Hearing Center of Excellence.

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Food and Drug Administration. Proposed Rule for Over-the-Counter Hearing Aids

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National Institute of Deafness and other Communication Disorders (NIDCD). Noise-Induced Hearing Loss.

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National Institute for Occupational Safety and Health (NIOSH). Noise and hearing loss prevention.

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Occupational Safety and Health Administration (OSHA). Preventing Hearing Loss Caused by Chemical (Ototoxicity) and Noise Exposure.

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World Health Organization (WHO). Make Listening Safe.

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WHO. World Report on Hearing.

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Wikipedia. Safe Listening.

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