1. Skinner HA. Angina pectoris. In: The Origin of Medical Terms. Baltimore: The William & Wilkins Company; 1949. p. 24.
2. Random House: unabridged dictionary. Angina. C2019. https://www.dictionary.com/browse/angina. Accessed 12 Mar 2019.
3. Morgagni JB. Letter the twenty-fourth: treats of preternatural pulses. In: The Seats and Causes of Diseases Investigated by Anatomy in Five Books, vol. 1. Alexander B, translator. London: A. Millar and T. Cadell; 1769. p. 708–69.
4. Lancisi GM. Hypertrophy of the heart with prolapse upon diaphragm: case histories. Malpighi’s opinion. In: Aneurysms - The Latin text of De Aneurysmatibus, Rome 1745. Wright WC, translator. New York: The MacMillian Company; 1952. p. 213–60.
5. Earl of Clarendon EH. The Life of Edward Earl of Clarendon, Lord High Chancellor of England and Chancellor of the University of Oxford. Oxford: Clarendon Printing House; 1759.