Collaborative Clinical Research Branch (CCRB)
Michael A. Polis, M.D., MPH, Branch Chief
Elizabeth Higgs, M.D., Deputy Branch Chief
Julia A. Metcalf, B.A., Clinical Research Specialist
Susan Orsega, CDR USPHS, Nurse Practitioner
John Powers, III MD, FACP, FIDSA, Senior Medical Scientist [C]
Alice Rosenberg, RN, Clinical Research Nurse [C]
Sophia Siddiqui, M.D., Medical Officer
Christian Yoder, MPH, RN, Clinical Research Specialist
Michael Belson, B.S., Microbiologist