Peters، T. J.؛ Wilkinson, D. (2010). "King George III and porphyria: a clinical re-examination of the historical evidence". History of Psychiatry. ج. 21 ع. 81 Pt 1: 3–19. DOI:10.1177/0957154X09102616. PMID:21877427.
Peters، T. J.؛ Wilkinson, D. (2010). "King George III and porphyria: a clinical re-examination of the historical evidence". History of Psychiatry. ج. 21 ع. 81 Pt 1: 3–19. DOI:10.1177/0957154X09102616. PMID:21877427.