Speech Therapy
About 5% to 10% of the United States population receive speech therapy services
Speech–language pathologists (SLPs) provide a wide range of services, mainly on an individual basis, but also as support for individuals, families, support groups, and providing information for the general public. SLPs work to prevent, assess, diagnose, and treat speech, language, social communication, cognitive-communication, voice, fluency, and swallowing disorders in children and adults. Speech services begin with initial screening for communication and swallowing disorders and continue with assessment and diagnosis, consultation for the provision of advice regarding management, intervention, and treatment, and providing counseling and other follow-up services for these disorders.
Learn more on Wikipedia or from the American Speech-Language Hearing Association