claim: The Romani people's migrations have taken them to Canada.
evidence: Richard E. Besser -LRB- born 1959 -RRB- is an American physician who was ABC News 's Chief Health and Medical editor and formerly the acting director of the American Centers for Disease Control and Prevention -LRB- CDC -RRB- and Agency for Toxic Substances and Disease Registry -LRB- ATSDR -RRB- .. ABC News. ABC News. Centers for Disease Control and Prevention. Centers for Disease Control and Prevention. Agency for Toxic Substances and Disease Registry. Agency for Toxic Substances and Disease Registry. In April 2017 , Besser took over as President and CEO of the Robert Wood Johnson Foundation in Princeton , NJ .