Concepts Alphabetical
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  X-ray examination (< Diagnostic methods) https://thesaurus.ecoi.net/ec1669 
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  Xenophobia (< Discriminations and persecutions) https://thesaurus.ecoi.net/ec898 
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  Xhosa (< Languages) https://thesaurus.ecoi.net/huridocs-mt14240815190101 
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  Xhosas (< Ethnic groups and nationalities) https://thesaurus.ecoi.net/huridocs-mt13240815190101 
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  Xi'an (< Shaanxi) https://thesaurus.ecoi.net/_d7b4b361 Capital of Shaanxi 
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  Xining (< Qinghai) https://thesaurus.ecoi.net/_e33efb8b Capital of Qinghai 
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  Xinjiang (< China) https://thesaurus.ecoi.net/ec2571 Autonomous region (zizhiqu) in China