Diagnostic Samples: From the Patient to the Laboratory: The Impact of Preanalytical Variables on the Quality of Laboratory Results, Edition 4

Prof. Dr. Sheshadri Narayanan is an Adjunct Clinical Professor of Pathology and Laboratory Medicine at the Weill Medical College of Cornell University, New York City. He is a diplomate of the American Board of Clinical Chemistry and is qualified to act as Clinical Laboratory Director in the States of New York and New Jersey. Besides the many publications he has also authored a book on “Principles and Applications of Laboratory Instrumentation” and co-authored with Prof. Donald S. Young a book on “Effects of Herbs and Natural Products on Clinical Laboratory Tests”.

Prof. Dr. Dr. Hermann Wisser studied medicine and chemistry at the universities of Marburg, Göttingen and Mainz. He completed his education in laboratory medicine in Munich and Hannover. Thereafter he served as head of the Department of Laboratory Medicine of the Robert Bosch Hospital in Stuttgart and of the Institut of Clinical Chemistry of the University Hospital Mannheim. He was President of the German Society of Clinical Chemistry and President of the Forum of the European Societies of Clinical Chemistry.

Until he died in 2004 Dr. Bernd Zawta was Head of the Department of Scientific Customer Support and Public Relations of Roche Diagnostics GmbH. He studied chemistry at the Technical University, Dresden, where he made his thesis on “The chromatography of steroid hormones”. He was editor of more than 20 brochures on the diagnostic application of tests in human diseases. Dr. Zawta served as WHO consultant in Mongolia in 1985. He died just before finishing a teaching program “Focus Patient Sample” together with Guder, Hagemann and Wisser.