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Hammar N, Alfredsson L, Smedberg M, Ahlbom A.Hammar N, et al. Among authors: alfredsson l.Scand J Work Environ Health. 1992 Jun;18(3):178-85. doi: 10.5271/sjweh.1590.Scand J Work Environ Health. 1992.PMID: 1615292Free article.
Alfredsson L, Hammar N, Ahlbom A, Hogstedt C, Plato N, Smedberg M, Theorell T.Alfredsson L, et al.Lakartidningen. 1990 Feb 14;87(7):474-6.Lakartidningen. 1990.PMID: 2308410Swedish.No abstract available.
Akerstedt T, Knutsson A, Alfredsson L, Theorell T.Akerstedt T, et al. Among authors: alfredsson l.Scand J Work Environ Health. 1984 Dec;10(6 Spec No):409-14. doi: 10.5271/sjweh.2302.Scand J Work Environ Health. 1984.PMID: 6535244Free article.