Takayoshi Terashita, Faculty of Health Sciences, Hokkaido University, Japan
8 July 2011
We apologize to the person who was interested in this article heartily. We mistook the frequency about Place of interview, Combination measure for income, and Individual WTP in table 1. Please refer to the following for these items: Place of interview Town’s hospital 14 Clinic 9 Participants’ office 7 Other 10
Combination measure for income low 11 middle 21 high 8
Individual WTP < 20,000 yen 13 20,000 – 33,000 yen 7 33,000 – 60,000 yen 14 > 60,000 yen 6
Correction Table 1
8 July 2011
We apologize to the person who was interested in this article heartily.
We mistook the frequency about Place of interview, Combination measure for income, and Individual WTP in table 1.
Please refer to the following for these items:
Place of interview
Town’s hospital 14
Clinic 9
Participants’ office 7
Other 10
Combination measure for income
low 11
middle 21
high 8
Individual WTP
< 20,000 yen 13
20,000 – 33,000 yen 7
33,000 – 60,000 yen 14
> 60,000 yen 6
Competing interests
None declared