Author: Benjamin Ellsworth
Position: Dental Student
Institution: UCSF
E-mail: benworth@hotmail.com
Submitted Date: October 04, 2007
Published Date: October 8, 2007
This comment was originally posted as a “Reader Response” on the publication date indicated above. All Reader Responses are now available as comments.

Replicated findings from parallel studies combined with meta-analysis is truly the strongest source of confident conclusions. I have found that looking at a small number of similarly performed studies sometimes can completely contradict each other. Finding the truth is very difficult.