1. Muthu C. A short review of the history of ancient Hindu medicine. Hist Med Sect. 1913;6:177–90.
2. Hippocrates. The oath. The works of Hippocrates. London: William Heinemann; 1957.
3. Goddard JC. From nursery rhyme to science. Urol News. 2014;18(4):31.
4. Douglas J. Lithotomia Douglassiana: or a new method for cutting for the stone. 2nd ed. London: C. Rivington; 1723.
5. Goddard JC. The Douglas brothers and bladder stone surgery in enlightenment England. De Historia Urologiae Europaeae. 2018;25:124–39.