Kurnit, David M., M.D., Ph.D., Investigator 233 
University of Michigan Medical School 
Molecular Analysis of Birth Defects 
\.3Amhxs,\.2LimoTds X.,¥\i.V>., Assistant Investigator 235 
The University of Chicago 
Human Papillomaviruses 
Lalouel, Jean-Marc, M.D., D.Sc, Investigator 237 
University of Utah School of Medicine 
Genetic Investigation of Complex Inheritance 
Laboratory of the late Samuel A. Latt, M.D., Ph.D 241 
Harvard University consortium: Children's Hospital 
Molecular Cytogenetics 
Lau, Yun-Fai Chris, Ph.D., Associate Investigator 243 
University of California at San Francisco 
Molecular Genetics of Mammalian Testis Determination and Spermatogenesis 
Leder, Philip, M.D., Senior Investigator 247 
Harvard University consortium: Harvard Medical School 
Genetic Control of Cell Growth and Development 
Ledley, Fred D., M.D., Assistant Investigator 249 
Baylor College of Medicine 
Molecular Genetic Approaches to Metabolism and Metabolic Diseases 
Liebhaber, Stephen A., Associate Investigator 251 
University of Pennsylvania School of Medicine 
Post-transcriptional Controls of Eukaryotic Gene Expression 
Lindquist, Susan, Ph.D., Investigator 255 
The University of Chicago 
Function and Regulation of the Heat-Shock Response 
Lowe, John B., M.D., Assistant Investigator 257 
University of Michigan Medical School 
Control of Cell Surface Oligosaccharide Expression 
^abei, Gary y,M..T).,'Ph..T>., Assistant Investigator 259 
University of Michigan Medical School 
Human Retroviruses and Coordinate Gene Expression in T Cells 
Nadal-Ginard, Bernardo, M.D., Ph.D., Investigator 261 
Harvard University consortium: Children's Hospital 
Molecular Biology of the Contractile System 
Nathans, Daniel, M.D., Senior Investigator • 265 
The Johns Hopkins University School of Medicine 
Genomic Response to Growth Factors 
Nathans, Jeremy, M.D., Ph.D., ^ssisfanf/wfesfigfltor 267 
The Johns Hopkins University School of Medicine 
Molecular Biology of Visual Pigments 
Nevins, Joseph R., Ph.D., Investigator 269 
Duke University Medical Center 
Gene Regulation in Animal Cells 
Continued 
135 
