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To: DakotaRed
From the article:
About one-third of attention deficit cases among U.S. children may be linked with tobacco smoke before birth or to lead exposure afterward, according to provocative new research.

About one-third may be linked with lead and/or tobacco? Wouldn't that mean then that TWO-THIRDS ARE NOT linked with lead and/or tobacco?
19 posted on 09/19/2006 4:42:00 AM PDT by dbehsman (NRA Life Member, and loving every minute of it!)
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To: dbehsman
Also, look at the sample size- 135. Not a very large sample, not to mention the problems of representativeness or generalization.
20 posted on 09/19/2006 4:54:15 AM PDT by goonie4life9
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