https://pioneerinstitute.org/wp-content/uploads/logo_440x96.png00Andrew Loinhttps://pioneerinstitute.org/wp-content/uploads/logo_440x96.pngAndrew Loin2020-10-19 12:19:472020-10-19 12:23:35Dr. Robert Gross, First Surgery on Congenital Heart Defect, Boston, MA, 1938
