Hayato Go, Fukushima Medical Iniversity, Fukushima, Fukushima, Japan; Nozomi Kashiwabara, Fukushima Medical University,, Fukushima, Fukushima, Japan; Hajime Maeda, School of Medicine, Fukushima Medical University, Fukushima, Fukushima, Japan; Koichi Hashimoto, Fukushima Medical University, Fukushima, Fukushima, Japan
