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Pedersen M, Permin H, Bindslev-Jensen C, Bendtzen K, Norn S.Pedersen M, et al. Among authors: norn s.Allergy. 1991 Feb;46(2):129-34. doi: 10.1111/j.1398-9995.1991.tb00556.x.Allergy. 1991.PMID: 1710093