No abstract available
MeSH terms
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Adolescent
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Adult
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Age Factors
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Biopsy
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Bone Marrow Examination
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Child
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Child, Preschool
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Digestive System / pathology*
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Follow-Up Studies
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Gastric Mucosa / pathology
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Humans
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Infant
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Intestinal Mucosa / pathology
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Male
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Mast Cells*
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Urticaria Pigmentosa / pathology*