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Kullberg BJ, van der Meer JW.Kullberg BJ, et al.Biotherapy. 1994;7(3-4):149-50. doi: 10.1007/BF01878480.Biotherapy. 1994.PMID: 7865345No abstract available.
van der Meer JW, Vogels MT, Kullberg BJ.van der Meer JW, et al. Among authors: kullberg bj.Biotherapy. 1994;7(3-4):161-7. doi: 10.1007/BF01878482.Biotherapy. 1994.PMID: 7865347Review.