Speech-language pathologists diagnose and treat disorders related to speech, language, cognitive communication, voice, fluency and swallowing (specializing in diagnosing using modified barium swallow studies). Evaluation and treatment services are available for conditions arising from stroke, traumatic brain injury, deterioration, developmental delays, cancer (brain, oral and laryngeal), chronic respiratory conditions (relating to decreased coordination of breathing with swallowing such as COPD) and neuromuscular disorders (multiple sclerosis, ALS and Parkinson's disease).