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Hyytinen ER, Haapala K, Thompson J, Lappalainen I, Roiha M, Rantala I, Helin HJ, Jänne OA, Vihinen M, Palvimo JJ, Koivisto PA.Hyytinen ER, et al. Among authors: haapala k.Lab Invest. 2002 Nov;82(11):1591-8. doi: 10.1097/01.lab.0000038924.67707.75.Lab Invest. 2002.PMID: 12429819Free article.