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d icd9x: A program for marking observations on ICD-9 inclusion/exclusion 
d          criteria. Good for marking observations with complex conditions.
d Bill Rising
d email: brising at stata dot com
d
d This program makes it simple to implement inclusion/exclusion criteria
d when using multiple icd9 codes to classify disease
d
f icd9x.ado
f icd9x.hlp
e