The results of the study seem to be a mixed bag. See the BJM editorial…
http://bmj.com/cgi/content/full/326/7398/1048
The fact that the study was authorized and sponsored by proponents of California Proposition 99(Anti-Smoking group)and then dropped because of the apparent survey outcome seems to balance the equation for me.
That’s akin to a district attorney gathering evidence that contradicts the outcome s/he wishes in a case. Then not turning the results of the investigation over to the defense attorney. The facts are hiden from the jury…
For a BJM overview and acces to a BJM abridged version of the survey, see…
http://bmj.com/cgi/content/abstract/326/7398/1057?ijkey=b97477b07669c0f43c8888f729d87cbc49a54ab2&keytype2=tf_ipsecsha