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Lindberg U, Hagberg B, Olsson Y, Sourander P.Lindberg U, et al. Among authors: olsson y.Acta Paediatr Scand. 1975 May;64(3):546-50. doi: 10.1111/j.1651-2227.1975.tb03878.x.Acta Paediatr Scand. 1975.PMID: 1171573
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Sima A, Olsson Y, Sourander P.Sima A, et al. Among authors: olsson y.Nord Med. 1971 Apr 15;85(15):480-1.Nord Med. 1971.PMID: 5574995Swedish.No abstract available.