ROCHESTER, Minn. — In a Rochester visit France’s ambassador to the United States, Philippe Etienne, recalled Mayo Clinic’s French connection. The partnership has been building since a clinic founder, Charles Mayo, visited Nobel Prize scientist Marie Curie in Paris a century ago, Etienne noted. Mayo returned home and named a 36-bed X-ray and radium clinic for her, the Curie Hospital. The hospital, which operated until 1962, now is Kahler Hotel’s Grand Grill. The ambassador noted that leading French medical institutes partner today with Mayo. “France is in the top five co-authors of a scientific publication produced by the Mayo Clinic,” he said.