We are pleased to present our readers the proceedings of the International symposium on "New Aspects of Human Polymorpho nuclear Leukocytes" which was held in Freiburg im Breisgau, FRG, from October 26-28th, 1989. The meeting provided an unique framework for close interaction between scientists from various disciplines, including bioche mistry, biology, physiology, pathology, clinical chemistry, hematology, gynecology, surgery, intensive care medicine, nephrology, rheumatology, and infectious diseases. We would like to express our gratitude and appreciation for all those who have stimulated,...