J Korean Med Sci. 2016 Nov;31(Suppl 2):S168-S177.
To the Editor:
We found a mistake in our recently published article:
We are very sorry to inform you that we made a mistake in the recently published article as above described. We found an error to missing statements about funding source. It was a mistake that occurred during revising the manuscript. We are kindly asking to add to following statement on the article.
Funding: This study was supported by a grant from the National R&D Program for Cancer Control, Ministry of Health and Welfare, Korea (grant no.1320310).