Não informado. (2008). B-ENT. Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery.
Lua i Stíl Chicago (17ú heag.)Não informado. B-ENT. Leuven, Belgica: Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery, 2008.
Lua MLA (8ú heag.)Não informado. B-ENT. Royal Belgian Society for Ear, Nose, Throat, Head and Neck Surgery, 2008.
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