Nina Starr Braunwald
... that Nina Starr Braunwald designed, fabricated and implanted the first successful artificial mitral heart valve replacement in a human?
... that <b id="mwAts"><a href="./Nina_Starr_Braunwald" id="mwAtw" rel="mw:WikiLink" title="Nina Starr Braunwald">Nina Starr Braunwald</a></b> designed, fabricated and implanted the first successful artificial <a href="./Mitral_valve" id="mwAt0" rel="mw:WikiLink" title="Mitral valve">mitral</a> <a href="./Valve_replacement" id="mwAt4" rel="mw:WikiLink" title="Valve replacement">heart valve replacement</a> in a human?