求翻译：斯坦福大学商学院和哈佛大学商学院被认为是美国最好的商学院。这两所学院多次在美国权威杂志的商学院排名中并列第一。是世界著名的高等学府，大学医学院在医疗、科研及教学等领域处于世界的领先地位，今天，世界已公认了斯坦福大学医学院在心脏内外科上的领导地位。是什么意思？

Stanford business school and Harvard University Graduate School of business is considered to be United States the best business schools. Both colleges several times in the United States tied for first place in the authoritative ranking of the magazine. Is a world famous institution of higher learnin