共 9 条
[5]
BROWNING ES, 1995, WALL STREET J 0328, pA1
[7]
THE DECLINE IN CORONARY-ARTERY BYPASS GRAFT-SURGERY MORTALITY IN NEW-YORK-STATE - THE ROLE OF SURGEON VOLUME
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1995, 273 (03)
:209-213
[9]
SMITH A, 1937, WEALTH NATIONS, P424