Jesper Steen

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The study concerns children born the years 1975-84. Only children in need of hearing aids are taken into account. The incidense was 1.08 per 1,000 live born children. The prevalens in January 1988 was 1.57 per 1,000 children, including 18 children moving into the city. The etiology among 75 children was 47% prenatal, 16% perinatal, 11% postnatal defects and(More)