http://tobaccodocuments.org/industry_depositions/HmPdPMI19670509.Rs.html
"Project 6900 Physiological Studies (Semi Annual)". 09 May 1967. Bates: 1000342063-1000342073 Exhibit 1.
http://tobaccodocuments.org/industry_depositions/HmPdPMI19670509.Rs.html