1. Syndrome du jour: the historiography and moral implications of diagnosing Darwin;Buchanan RD;Stud Hist Philos Sci,2021
2. Darwin, Chagas', mind, and body;Goldstein JH;Perspect Biol Med,1989
3. Mitochondrial disorder caused Charles Darwin's cyclic vomiting syndrome;Finsterer J;Int J Gen Med,2014
4. Darwin Correspondence Project, “Letter no. 18”. (1825). Accessed. November 16, 2021: https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-18.xml.
5. Darwin Correspondence Project, “Letter no. 13”. (1825). Accessed. November 16, 2021: https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-13.xml.