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de Groot ER, Lamers MC, Aarden LA, Smeenk RJ, van Oss CJ.de Groot ER, et al. Among authors: aarden la.Immunol Commun. 1980;9(5):515-28. doi: 10.3109/08820138009066012.Immunol Commun. 1980.PMID: 7000678