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Acta Obstetricia et Gynecologica Scandinavica > 102 > 4 > 465 - 472
American Journal of Industrial Medicine > 58 > 1 > 21 - 32
Acta Obstetricia et Gynecologica Scandinavica > 102 > 4 > 465 - 472
American Journal of Industrial Medicine > 58 > 1 > 21 - 32