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Background Until the 1970s , autism was rarely accepted to be a distinctive diagnosis , but , following changes to the Diagnostic and Statistical Manual of the American Psychiatric Association it is diagnosed much more often .
 organization: American Psychiatric Association
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: American Psychiatric Association