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Mowat - Wilson syndrome ( MWS ) is a severe intellectual disability ( ID ) - distinctive facial gestalt - multiple congenital anomaly syndrome , commonly associating microcephaly , epilepsy , corpus callosum agenesis , conotruncal heart defects , urogenital malformations and Hirschsprung disease ( HSCR ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
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Answer:
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