Angelman syndrome

(ān′jĕl-măn, ăn′)

[Harry Angelman, Brit. pediatrician, 1915-1996]
A rare genetic condition marked by severe mental retardation, microcephaly, and paroxysms of laughter. It is due to an abnormal chromosome 15 of maternal origin.
SEE: Prader-Willi syndrome

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