The twentieth century will close with 5 billion people added to the current global population. Between 1980 and the year 2000, the total world population will increase from 4 billion 10 a liUle over 6 billion. There will be half as many morc people on earth during these 20 years than the number accumulated since the origin of man to 1980. Overpopulation is particularly acute in economically developing countries, where contraception has become a social necessity. Comraceplion Researcll for Today and Ihe Nineties carries the proceedings of an international symposium convened in New Delhi in...

Once again we have gathered to discover and evaluate advances made in our ability to understand. diagnose and possibly treat breast cancer with the new reagents provided by monoclonal antibody techniques. In the last two years since our first International Workshop on Monoclonal Antibodies and Breast Cancer there has been an enormous surge in the number and quality of applications for these new reagents. Solid achievements have been made in identification and quantitation of estrogen and progesterone receptors. in histopathological diagnostic procedures. in serum diagnosis. and we are...