1970-1972 Employed as Special Consultant, Cytogenetics Laboratory, Depart- ment of Neurology, Children's Hospital, Washington, D.C. Consultative responsibilities were directed toward the functioning of the cytogenetic program as outlined when employed as Chief Technologist. 1967-1970 Employed as Chief Technologist, Cytogenetics Laboratory, Department of Neurology, Children's Hospital, Washington, D.C. I Girected the operation of the clinical cytogenetic program including the supervision of three technicians and a research medical student. Major responsibilities included the acquisition of biopsies, clinical analysis of patient data, tissue culture preparations, slide preparations, photomicroscopy, and cytogenetic analysis. Other responsibilities included the direction of buccal smear studies, cytogenetic evaluation of amniotic fluid, initiation of fibroblast tissue culture from necroscopic samples, autoradiographic analyses, and dermatoglyphic studies. Peripheral teaching responsibilities included lecturing to nurses, medical students, and house staff, and graduate courses in the Department of Obstetrics and Gynecology, George Washington University Medical School, Washington, D.C. .