1. Accardo, Pasquale. 1987. Diagnosis and Detention: The Medical Iconography of Sherlock Holmes. Rutherford: Fairleigh Dickinson University Press.
2. Doyle, Arthur Conan. (1887) 1967. A Study in Scarlet. In The Annotated Sherlock Holmes, vol. I, ed. William Baring-Gould, 143–234. New York: Clarkson N. Potter.
3. ———. (1890) 1967. The Sign of the Four. In The Annotated Sherlock Holmes, vol. I, ed. William Baring-Gould, 610–688. New York: Clarkson N. Potter.
4. ———. (1891a) 1967. A Case of Identity. In The Annotated Sherlock Holmes, vol. I, ed. William Baring-Gould, 404–417. New York: Clarkson N. Potter.
5. ———. (1891b) 1967. A Scandal in Bohemia. In The Annotated Sherlock Holmes, vol. I, ed. William Baring-Gould, 346–367. New York: Clarkson N. Potter.