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Academic Journal
Authors: KJAER, SUSANNE K., ENGHOLM, GERDA, TEISEN, CHANTAL, HAUGAARD, BIRTHE J., LYNGE, ELSEBETH, CHRISTENSEN, RENE B., MØLLER, KNUD A., JENSEN, HENNING, POLL, FOUL, VESTERGAARD, BENT F, DE VILLIERS, ETHEL-MICHELE, JENSEN, OLE M.
Superior Title: American Journal of Epidemiology; Apr1990, Vol. 131 Issue 4, p669-682, 14p