The June 20, 2005, issue of "Rolling Stone" contained an article written by Robert F. Kennedy, Jr., entitled "Deadly Immunity". The article, which was also published on Salon.com, focused on the Simpsonwood conference, and alleged that government and private industry had colluded to "thwart the Freedom of Information Act" and "withhold" vaccine-safety findings from the public. Kennedy said that the Simpsonwood data linked thimerosal in vaccines to the rise in autism, but that the lead researcher later "reworked his data to bury the link between thimerosal and autism." However, Kennedy's article contained numerous errors, including overstating the amount of ethylmercury in vaccines, wrongly claiming that a researcher held a patent on one of the discussed vaccines, and erroneously claiming that the rotavirus vaccine contained thimerosal.