J.C. Hall and J.C. Dunlap, Foreword. T. Friedmann and F. Giannelli, Preface. F.D. Ledley, After Gene Therapy: Issues in Long-Term Clinical Follow-Up and Care. E. Beutler, Gaucher Disease. T.S. Pillay,W.J. Langlois, and J.M. Olefsky, The Genetics of Non-insulin-Dependent Diabetes Mellitus. P.M. Green, J.A. Naylor, and F. Giannelli, The Hemophilias. T.P. Knecht and C.K. Glass, The Influence of Molecular Biology on our Understanding of Lipoprotein Metabolism and the Pathobiology of Atherosclerosis. R.C. Eisensmith and S.L.C. Woo, Molecular Genetics of Phenylketonuria: From Molecular Anthropology to Gene Therapy. N.J. Royle, The Proterminal Regions and Telomeres of Human Chromosomes. References. Subject Index.