Table 4. Opinions of radiation oncologists regarding operation of brachytherapy center.

Opinion	Frequency*
Difficulties in maintaining brachytherapy center (among 28 brachytherapy centers)
Too low medical reimbursement	27
Too high expenses for source replacement	23
Shortage of human resources	13
Concerns about accidents	2
Decreasing number of patients	1
Obsolete brachytherapy equipment	1
Causes for not installing brachytherapy equipment (among 48 centers not performing brachytherapy)
Too low medical reimbursement	26
Too high expenses for source replacement	29
Shortage of human resources	25
Absence of dedicated room for brachytherapy	14
Decreasing number of patients	9
Not permitted by hospital authority	5
Physician's personal decision
Concerns about accidents	3
Burden of invasive technique	2
Lack of brachytherapy experience	2

* Multiple choices were allowed in selection of answers.