http://tobaccodocuments.org/bliley_rjr/500004235.html
Dehart, E.H.; Hill Knowlton. "Memorandum Concerning Smoking and Health Issues Prepared by Consultants Engaged by Tobacco Companies in Order to Assist Attorneys Providing Confidential Information to RJR in-House Legal Counsel, in House Legal Counsel to Tobacco Company, Outside Legal Counsel to Tobacco Company, Consultants Engaged by Tobacco Companies, Managerial Employee of Tobacco Companies, TI Employee, Employees of Outside Legal Counsel to Tobacco Company and Outside Legal Counsel to All Tobacco Companies, and Copied to TI Employee and Consultants Engaged by Tobacco Companies.". 22 Apr 1965. Bates: 500004235.
http://tobaccodocuments.org/bliley_rjr/500004235.html