Dr. Robert Califf was confirmed by the Senate to lead the Food and Drug Administration. Dr. Califf will be taking over from Acting FDA Commissioner Janet Woodcock who served in the role on an interim basis. The position has been vacant for over a year.   Dr. Califf, a cardiologist with extensive clinical research experience, previously held the role of Commissioner during the final year of the Obama administration.   He was nominated to the position by the president in November.  ...