I am pleased to respond to the wish of the Editors, Drs A. Czeizel, H. G. Benk- mann and H. W. Goedde and write the Foreword to this book "Genetics ofthe Hun- garian population." This book represents the result of a fruitful international scientif- ic cooperation, an endeavour that has been forged and sustained in the midst of a number of difficulties. It bears ample testimony to the fact that the pursuit of science transcends national boundaries and barriers and to what can be achieved through international cooperation. It has now become possible, among other things, to present a more...