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List of contexts inside reports submitted by
DREYFUS BASIC US MORTGAGE SECURITIES FUND
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Report:
ck0000811789-20111231.xml
or
Date:
From May 1, 2012 to May 1, 2012
Report:
ck0000811789-20101231.xml
or
Date:
From May 1, 2011 to May 1, 2011