First published in 1985: This volume describes the various procedures in Hemapheresis. This a medical technology in which the blood of a person is passed through an apparatus that separates out one particular constituent and returns the remainder to the circulation.About the Author: James L. MacPherson is currently completing his dissertation research from the George Washington University as a guest worker at the laboratories of the Food and Drug Administration, Office of Biologics Research and review, Division of Blood and Blood Products.Duke O. Kasprisin, M.D., is Director of the American Red Cross Blood Services, Oklahoma Region.