共 11 条
[3]
PHYSICIANS UTILIZATION AND CHARGES FOR OUTPATIENT DIAGNOSTIC-IMAGING IN A MEDICARE POPULATION
[J].
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION,
1992, 268 (15)
:2050-2054
[6]
POPP RL, 1990, CIRCULATION, V81, P2032
[7]
RICKETTS HJ, 1962, JAMA-J AM MED ASSOC, V181, P620
[8]
SONES F M Jr, 1962, Mod Concepts Cardiovasc Dis, V31, P735