When the targeted values were lowered, it was apparent that most of the docs that received income from the pharmaceutical companies approved the new values, and those that didn't opposed the new values... This study looked at the justfication for lowering the value and determined it was not justified.
[http://www.annals.org/cgi/content/full/145/7/520]
[http://www.timesdaily.com/apps/pbcs.dll/article?AID=/20061017/ZNYT04/610170342/1069/COMMUNITIES03]