Choi, JK, S Holzer, SA Chacko, Z Lin, RK Hoffman, and H Holtzer. 1991. Phorbol Esters Selectively and Reversibly Inhibit a Subset of Myofibriller Genes Responsible for the ongoing Differentiation Program of Chick Skeletal Myotubes. Molecular and Cellular Biology.: 11. 4473-82.

Emlet, DR, SA Chacko, J Wu, P Goldschmidt-Clarmont, and AJ Wong. 1993. Profillin as a Candidate Tumor Suppressor Gene on Chromosome 17p. Proceedings of the American Association for Cancer Research: 34. 3228.
1987 Jerome H. Holland Laboratories
Laboratory Assistant: Isolated Endothelial Cell Growth Factor from bovine hypothalamus tissue.

1988-89 University of Pennsylvania Medical School
Laboratory Assistant: Eexecuted independent experiments related to larger project involving the effects of TPA, a phorbol ester, on chicken myotubes.

1991-92 Fox Chase Cancer Center
Scientific Technician: Department of Medical Oncology

1992 Jeffereson Cancer Institute
Department of Microbiology/Immunology
Scientific Technician: Project involving Tumor Suppressor Genes on Chromosome 17p.