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Johnson E, Hetland G.Johnson E, et al. Among authors: hetland g.Scand J Immunol. 1991 Jun;33(6):667-71. doi: 10.1111/j.1365-3083.1991.tb02539.x.Scand J Immunol. 1991.PMID: 2047760
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Johnson E, Hetland G.Johnson E, et al. Among authors: hetland g.Scand J Clin Lab Invest. 1988 May;48(3):223-31. doi: 10.3109/00365518809167488.Scand J Clin Lab Invest. 1988.PMID: 3287591
Johnson E, Hetland G.Johnson E, et al. Among authors: hetland g.Scand J Immunol. 1988 May;27(5):489-93. doi: 10.1111/j.1365-3083.1988.tb02375.x.Scand J Immunol. 1988.PMID: 3287594Review.No abstract available.