Titlebook: Scientific Studies in Mental Retardation; John Dobbing,A. D. B. Clarke,R. O. Robinson Book 1984 Palgrave Macmillan, a division of Macmilla

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Social influences in the aetiology and prevention of mild retardationinappropriate; failure to seek genetic counselling may result in further births of retarded children. Moreover, the degree of severe retardation may be exacerbated or diminished by the child’s social context.

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Tetrahydrobiopterin metabolism, neurological disease and mental retardation. It is the coenzyme in the conversion of phenylalanine to tyrosine, tyrosine to dopa and tryptophan to 5-hydroxytryptophan. It therefore has a key role in the formation of the CNS neurotransmitters, dopamine, noradrenaline and serotonin (Leeming .., 1981).

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Infectious agents in the aetiology of mental retardation But it is important to establish with certainty that a particular case of mental retardation is the direct result of an infectious disease rather than to label it as such on insufficient evidence. We need more precise information on the aetiological role of infectious disease and mental retardation, both mild and severe.

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ithout evoking the names of its pioneers-Kopec, Wigglesworth, Fraenkel. Whereas the experiments demonstrated the existence of the first known neurohormones, the formulation of the concept of neurosecretion was of fundamental importance to further progress, and tribute must be paid to Ernst and Berta

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Eva D. Albermanand general nature of insects present special problems to the student of entomology. For example, many commercially available instruments are geared to measure in grams, while the forces commonly encountered in studying insects are in the milligram range. Therefore, techniques developed in the study

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Ann M. Clarke,A. D. B. Clarkeand general nature of insects present special problems to the student of entomology. For example, many commercially available instruments are geared to measure in grams, while the forces commonly encountered in studying insects are in the milligram range. Therefore, techniques developed in the study

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