In 2268, Christine Chapel used a memory tape of this text as a prop in a bluff, claiming it contained Doctor Leonard McCoy's orders for Ensign Garrovick to eat something. When she returned the tape to sickbay, McCoy asked her what it was, then read the title when she showed it to him. When he asked her what she was doing with it, Chapel answered, "Applying psychology." (TOS: "Obsession" ) The paper might pertain to the diseases to natives of Cygnus, Cygnet XIV, Cygniai Expanse, Omega Cygni or the Omega Cygni system.