Dr. Barbara Johnston, M.D., is the chief of HIV Services/Early Intervention Clinic at Lincoln Community Health Center in Durham, N.C.
Dr. Barbara Johnston, M.D., is the chief of HIV Services/Early Intervention Clinic at Lincoln Community Health Center in Durham, N.C.
Dr. Barbara Johnston, M.D., is the chief of HIV Services/Early Intervention Clinic at Lincoln Community Health Center in Durham, N.C.