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van Halteren AG, van der Cammen MJ, Cooper D, Savelkoul HF, Kraal G, Holt PG.van Halteren AG, et al. Among authors: kraal g.J Immunol. 1997 Sep 15;159(6):3009-15.J Immunol. 1997.PMID: 9300726
Thepen T, Kraal G, Holt PG.Thepen T, et al. Among authors: kraal g.Ann N Y Acad Sci. 1994 May 28;725:200-6. doi: 10.1111/j.1749-6632.1994.tb39802.x.Ann N Y Acad Sci. 1994.PMID: 8030991Review.No abstract available.