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On a Website

http://tobaccodocuments.org/filters/2023091383-1385.html

As a Footnote

PM, Philip Morris; Ryan, Frank. "Subject: PANDORA (Finger Occlusion)". 13 Jan 1983. Bates: 2023091383-2023091385.
http://tobaccodocuments.org/filters/2023091383-1385.html