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3. The epidemiology of sudden infant death syndrome in Finland in 1969-1980;Rintahaka, P.J.; Hirvonen, J.;Forensic Sci Int,1986
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5. Cot death and prone sleeping position in The Netherlands;de Jonge GA; AC, Engelberts; AJM, Koomen-Liefting; PJ, Kostense;BrMedJ,1989