[Impressions of a visit to some heart surgery centers in North America].
D006348:Cardiac Surgical Procedures; D006801:Humans; D009275:Names; D009656:North America; D012919:Social Behavior; D013903:Thoracic Surgery
HEART/surgery
Eindrücke von einem Besuch einiger Herzchirurgiezentren Nordamerikas.  II.