Wiersinga, Wilmar M.; Bartalena, Luigi (October 2002). “Epidemiology and prevention of Graves' ophthalmopathy”. Thyroid: Official Journal of the American Thyroid Association12 (10): 855–860. doi:10.1089/105072502761016476. ISSN1050-7256. PMID12487767.
Wiersinga, Wilmar M.; Bartalena, Luigi (October 2002). “Epidemiology and prevention of Graves' ophthalmopathy”. Thyroid: Official Journal of the American Thyroid Association12 (10): 855–860. doi:10.1089/105072502761016476. ISSN1050-7256. PMID12487767.
Wiersinga, Wilmar M.; Bartalena, Luigi (October 2002). “Epidemiology and prevention of Graves' ophthalmopathy”. Thyroid: Official Journal of the American Thyroid Association12 (10): 855–860. doi:10.1089/105072502761016476. ISSN1050-7256. PMID12487767.