Acknowledgement to reviewers who served in 2015.

Babazono, Akira (Fukuoka) Ezura, Yoichi (Tokyo) Fujishiro, Hitomi (Tokushima) Fukuda, Yoshiharu (Ube) Fukunaga, Ichiro (Kochi) Furuya, Hiroyuki (Isehara) Hamazaki, Kei (Toyama) Harada, Kouji (Kyoto) Hida, Kazuyuki (Okayama) Hiraku, Yusuke (Tsu) Hirano, Seishiro (Tsukuba) Hisanaga, Naomi (Komaki) Hiura, Mizue (Kumamoto) Horiuchi, Masahisa (Kagoshima) Ichiba, Masayoshi (Saga) Ichihara, Gaku (Nagoya) Ishikawa, Hirofumi (Okayama) Iwasaki, Kenichi (Tokyo) Iwata, Noboru (Higashihiroshima) Izawa, Tetsuya (Kyotanabe) Kameo, Satomi (Maebashi) Kamide, Kei (Suita) Kamijima, Michihiro (Nagoya) Kanamori, Masao (Otsu) Kashihara, Naoki (Kurashiki) Katoh, Takahiko (Kumamoto) Kawai, Kazuaki (Kitakyuhsu) Kayaba, Kazunori (Koshigaya) Kido, Teruhiko (Kanazawa) Kobayashi, Nobumichi (Sapporo) Koizumi, Akio (Kyoto) Konishi, Shoko (Tokyo) Koyama, Hiroshi (Maebashi) Kumae, Takashi (Tokyo) Kumagai, Yoshito (Tsukuba) Kunugita, Naoki (Wako) Mamoru, Hirata (Amagasaki) Matsumura, Yasuhiro (Chigasaki) Michikawa, Takehiro (Tsukuba) Min, Kyong-Son (Tondabayashi) Miyai, Nobuyuki (Wakayama) Miyao, Masaru (Nagoya) Miyatake, Nobuyuki (Miki-cho) Mogi, Masaki (Toon) Morioka, Ikuharu (Wakayama) Morita, Manabu (Okayama) Morita, Emi (Nagoya) Moriyama, Masaki (Fukuoka) Murata, Mariko (Tsu) Nagaya, Teruo (Nagoya) Nakai, Kunihiko (Sendai) Nakamura, Keiko (Tokyo) Nakamura, Hiroyuki (Kanazawa) Nakaya, Naoki (Sendai) Nishiyama, Midori (Mibu) Nomura, Kyoko (Tokyo) Norio, Sugawara (Hirosaki) Ogawa, Yusuke (Kyoto) Ohgami, Nobutaka (Kasugai) Okubo, Yasushi (Tokyo) Okuda, Masayuki (Yamaguchi) Onodera, Sho (Kurashiki) Otsuki, Takemi (Kurashiki) Saijo, Yasuaki (Asahikawa) Satoh, Minoru (Kurashiki) Satoh, Minoru (Kitakyuhsu) Sozu, Takashi (Kyoto) Sugisaki, Koshu (Niigata) Suna, Shigeru (Takamatsu) Suwazono, Yasushi (Chiba) Suzuki, Kohta (Yamanashi) Takebayashi, Toru (Tokyo) Tatsuta, Nozomi (Sendai) Tomita, Masafumi (Kurashiki) Ueda, Kayo (Kyoto) Ueji, Masaru (Mito) Wada, Yasuhiko (Kochi) Wakabayashi, Ichiro (Nishinomiya) Wang, Da-Hong (Okayama) Yamane, Kunikazu (Kurashiki) Yano, Hiromi (Kurashiki) Yonemoto, Junzou (Tsukuba) Yoshida, Minoru (Hachinoheshi) Yoshimasu, Kouichi (Wakayama) Yoshitome, Kei (Kurashiki)