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   C. Trejo Gallego et al, 2019, Radiología (English Edition) CrossRef
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   Huiwen Tan et al, 2019, Medicine CrossRef
4. Multi-System Langerhans Cell Histiocytosis as a Mimic of IgG4-Related Disease: A Case Report and Literature Review
   Xiaohui Feng et al, 2022, Frontiers in Endocrinology CrossRef