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Alaygut, D., Soyaltin, E., Camlar, S.A. et al. Periumbilical swelling, erythema, and discharge in a girl: Questions. Pediatr Nephrol 35, 409–410 (2020). https://doi.org/10.1007/s00467-019-04353-0
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DOI: https://doi.org/10.1007/s00467-019-04353-0