Dr. Dwight Harken, First Artificial Heart Valve Surgery, Boston, MA, 1960October 19, 2020/0 Comments/by https://pioneerinstitute.org/wp-content/uploads/logo_440x96.png 0 0 Andrew Loin https://pioneerinstitute.org/wp-content/uploads/logo_440x96.png Andrew Loin2020-10-19 12:19:502020-10-19 12:24:17Dr. Dwight Harken, First Artificial Heart Valve Surgery, Boston, MA, 1960
