In 2004, the journal published a statement on the controversy the study caused, but it was not a retraction.
Instead, his studies of Enlightenment-era ideas caused him to challenge traditional political and religious views.
His study of Basslett's body caused him to go back to Ralgood's.
The study caused debate from its beginning in April 1992 because many critics were concerned about the dangerous side effects.
The study, ordered by Congress, could cause the White House some discomfort.
The study caused controversy in the media when it was made public in 2004.
But, pointing to decades of research on hair dye, many epidemiologists say the new study is not cause for worry.
The study found that the oldest drug, perphenazine, was as effective and caused no worse side effects than three of the newer drugs.
One published study reported that Catrix injected into mice caused their immune systems to be more active.
His study of the Amendment's language and historical context, he said, caused him to believe that the provision had been cast aside too easily.