1. Walpole H. Letter to Horace Mann, January 28, 1754. As quoted in. In: Remer TG, editor. Serendipity and the three princes. Norman: University of Oklahoma Press; 1965. p. 6.
2. Roberts RM. Serendipity: accidental discoveries in science. New York: Wiley; 1989.
3. Bollet AJ. Medical history in medical terminology. Res Staff Physician. 1999;45:60–3.
4. Scholz H. Some historical aspects of the development of cardiovascular drugs. Z Kardiol. 2002;91 Suppl 4:34–42.
5. Kar N. Chronic koro-like symptoms—two case reports. BMC Psychiatry. 2005;5:34–6.