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Hammar N, Alfredsson L, Smedberg M, Ahlbom A.Hammar N, et al.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.
Hammar N, Ahlbom A, Theorell T.Hammar N, et al.Epidemiology. 1992 Jul;3(4):348-55. doi: 10.1097/00001648-199207000-00010.Epidemiology. 1992.PMID: 1637898
Rutqvist LE, Liedberg A, Hammar N, Dalberg K.Rutqvist LE, et al. Among authors: hammar n.Int J Radiat Oncol Biol Phys. 1998 Jan 15;40(2):359-63. doi: 10.1016/s0360-3016(97)00765-7.Int J Radiat Oncol Biol Phys. 1998.PMID: 9457822
Hammar N, Alfredsson L, Johnson JV.Hammar N, et al.Occup Environ Med. 1998 Aug;55(8):548-53. doi: 10.1136/oem.55.8.548.Occup Environ Med. 1998.PMID: 9849542Free PMC article.