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Dijkstal، JM؛ Bothun, ED؛ Harrison, AR؛ Lee, MS (يناير 2012). "Normal exophthalmometry measurements in a United States pediatric population". Ophthalmic plastic and reconstructive surgery. ج. 28 ع. 1: 54–6. DOI:10.1097/iop.0b013e3182392f05. PMID:22262290.
nih.gov
pubmed.ncbi.nlm.nih.gov
de Juan E، Jr؛ Hurley, DP؛ Sapira, JD (سبتمبر 1980). "Racial differences in normal values of proptosis". Archives of Internal Medicine. ج. 140 ع. 9: 1230–1. DOI:10.1001/archinte.140.9.1230. PMID:7406621.
Dijkstal، JM؛ Bothun, ED؛ Harrison, AR؛ Lee, MS (يناير 2012). "Normal exophthalmometry measurements in a United States pediatric population". Ophthalmic plastic and reconstructive surgery. ج. 28 ع. 1: 54–6. DOI:10.1097/iop.0b013e3182392f05. PMID:22262290.
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