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Heino M, Juntunen-Backman K, Leijala M, Rapola J, Laitinen LA.Heino M, et al. Among authors: laitinen la.Am Rev Respir Dis. 1990 Feb;141(2):428-32. doi: 10.1164/ajrccm/141.2.428.Am Rev Respir Dis. 1990.PMID: 2301858