Original sentence: David Hufford, Professor of Medical Humanities at the Penn State College of Medicine, wrote an opinion paper in which he asserts that Quackwatch would be more effective if it relied more on research and less on personal beliefs.In regard to the debate over water fluoridation, an anti-fluoridation article in the National Review quotes a "generally informative and persuasive" Quackwatch article, but criticizes its rhetorical style as "perhaps not the best way to win an argument, especially with serious-minded people
Edited sentence: " In regard to the debate over water fluoridation, an anti-fluoridation article in the National Review quotes a "generally informative and persuasive" Quackwatch article, but criticizes its rhetorical style as "perhaps not the best way to win an argument, especially with serious-minded people.David Hufford, Professor and Chair of Medical Humanities at the Penn State College of Medicine, wrote a paper in which he cites Quackwatch articles as sources...to find further examples of systematic bias  extensively citing a review with Joel M.Kauffman's concerns about Quackwatch's reliablity