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- [31] HEARING IMPAIRMENT IN A POPULATION OF CHILDREN WITH DOWNS SYNDROME AMERICAN JOURNAL OF MENTAL DEFICIENCY, 1968, 73 (02): : 298 - &
- [33] RECENT TRENDS IN INCIDENCE, MORBIDITY AND SURVIVAL IN DOWNS-SYNDROME JOURNAL OF MENTAL DEFICIENCY RESEARCH, 1990, 34 : 49 - 57
- [34] DOWNS-SYNDROME IN NIGERIA - PREGNANCY WASTAGE IN MOTHERS OF DOWNS-SYNDROME NIGERIAN MEDICAL JOURNAL, 1979, 9 (01): : 89 - 92