| Frequency and costs of Diagnostic Imaging in Office Practice: A Comparison of Self - Referring and Radiologist - Referring Physicians | รายวิชา (1) | บรรณานุกรม |
| Frequency and costs of Diagnostic Imaging in Office Practice: A Comparison of Self - Referring and Radiologist - Referring Physicians N Engl J Med | รายวิชา (1) | บรรณานุกรม |