Minerva medica
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Experience with thalidomide and German measles contracted during pregnancy has focused attention on the question of birth defects. It is suggested that good reasons exist for the carrying out epidemiological investigations to establish the true incidence and geographical and social distribution of such deformities, and hence their possibly "environmental" origin at least in some instances. ⋯ A detailed account is given of a prospective survey in progress in Israel. Reference is also made to a similar survey being launched in some Italian cities with the aid of the CNR.