Dietary Supplements

Michelle J. Hooth, Ph.D., D.A.B.T.

Office of Program Operations Michelle J. Hooth, Ph.D., D.A.B.T. Deputy Director for Program Operations, Division of Translational Toxicology; Director, Office o…

Dori Germolec, Ph.D.

Systems Toxicology Branch Dori R. Germolec, Ph.D. Biologist Tel 984-287-3134 germolec@niehs.nih.govResearch SummaryDori Germolec, Ph.D., is a biologist who join…

Nigel J. Walker, Ph.D.

Systems Toxicology Branch Nigel J. Walker, Ph.D. Staff Scientist Tel 984-287-3204 Fax 301-451-5596 walker3@niehs.nih.govNigel Walker, Ph.D., D.A.B.T., is a staf…

Stephanie Smith-Roe, Ph.D.

Systems Toxicology Branch Stephanie L. Smith-Roe, Ph.D. Genetic Toxicologist Tel 984-287-3189 Fax 919-541-3647 stephanie.smith-roe@nih.govStephanie Smith-Roe, P…

Kristen R. Ryan, Ph.D.

Kristen Ryan, Ph.D., DABT, is a toxicologist in the Systems Toxicology Branch of the Division of Translational Toxicology (DTT) at the National Institute of Env…

Cynthia Rider, Ph.D.

Systems Toxicology Branch Cynthia V. Rider, Ph.D. Chief, Systems Toxicology Branch Tel 984-287-3175 cynthia.rider@nih.govCynthia Rider, Ph.D., is Chief of the S…