OMIM Phenotype&GeneSymbol  

  Chapter.18   Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
  R47-R49   Symptoms and signs involving speech and voice
    R49   Voice disturbances ( Search )
    • R490   Dysphonia ( Search )
    • R491   Aphonia ( Search )
    • R492   Hypernasality and hyponasality ( Search )
    • R498   Other and unspecified voice disturbances ( Search )
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