| - (10/29/2009, Reuters Health) |
| - (10/26/2009, HealthDay) |
| - (10/21/2009, HealthDay) |
| - (10/20/2009, HealthDay) |
| - (10/20/2009, Reuters Health) |
| - (10/09/2009, HealthDay) |
| - (10/08/2009, HealthDay) |
| - (10/07/2009, HealthDay) |
| - (09/30/2009, HealthDay) |
| - (09/24/2009, HealthDay) |
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