Accepted for Publication: February 27, 2013.
Published Online: June 26, 2013. doi:10.1001/jamadermatol.2013.4452.
Study concept and design: Minagawa, Okuyama.
Acquisition of data: Minagawa.
Analysis and interpretation of data: Minagawa, Uhara, Yokokawa, Okuyama.
Drafting of the manuscript: Minagawa, Okuyama.
Critical revision of the manuscript for important intellectual content: Minagawa, Uhara, Yokokawa, Okuyama.
Statistical analysis: Yokokawa.
Obtained funding: Okuyama.
Administrative, technical, and material support: Okuyama.
Study supervision: Uhara, Okuyama.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported in part by the National Cancer Center Research and Development Fund (23-A-22).