Dr. Awtar Krishan PhD is a world-renowned scientist. He obtained his PhD from Panjab University (1962) and the Univ. of Western Ontario, Canada (1963) in Cytogenetics and Anatomy. From 1965 to 1977, he was at the Sidney Farber Cancer Institute, Harvard Medical School as Head of the Tissue Ultrastructure and Experimental Pathology Labs. He has developed flow cytometric techniques for rapid analysis of DNA content by hypotonic propidium iodide, monitoring of drug retention and resistance, and more recently for monitoring hormone receptor expression in archival tumors. He is currently Director, Analytical Cytometry Laboratory, at University of Miami.