Acknowledgements
  The author wants to acknowledge Professor Hans Bürgi and Mr. Bernard Moinier for having authorized him to expand their joint paper presently in press ; Doctor Gregory Gerasimov for his information on IDD in Eastern Europe; Professors Zvonko Kusic, Vaclav Zamrazil, Doctor Bruno de Benoist and his colleagues from the Department of Nutrition for Health and Development (NHD), WHO Geneva, Doctor Yolande Wagener and Mr. Jean-Paul Hoffmann, Professor Borisclav Karanfilski, Professors Mihaela Simescu and Eusebie Zbranca and Doctor Jan Podoba for their personal communications on IDD and its control in Western and Central Europe.