We appreciate the invaluable contributions of the following reviewers during the editing Vol. 13 Nos. 1–2.

Mohammed Abu-Dieyeh

Yoshihisa Akamatsu

Takashi Asaeda

Jan Bogaert

Jaehyuck Choi

Emilio Díaz-Varela

Lee Dong Kun

Michiro Fujihara

Takeshi Fujino

Takuya Furukawa

Md. Enamul Haque

Kenji Harada

Hiroshi Hashimoto

Yohey Hashimoto

Yoshinobu Hashimoto

Hironori Hayashi

Sun-Kee Hong

Hideyuki Ida

Kosuke Iimura

Junichi Imanishi

Jun Ishii

Kazuhito Ishimatsu

A.K.M. Islam

Rei Itsukushima

Nobusuke Iwasaki

Mahito Kamada

Sangjun Kang

Naoki Katayama

Akira Kato

Sadahisa Kato

Hiroaki Kato

Masazumi Kayama

Jin-Oh Kim

Jae-Eun Kim

Kyungmin Kim

Takeshi Kinoshita

Toshihiko Kinugasa

Sohei Kobayashi

Tetsuya Kondo

Fanhua Kong

Otsuki Kyoichi

Hongyuan Li

Taku Maeda

Teodoro Marañón

Jeffrey Marion

Yosuke Matsuda

Hajime Matsushima

Byoung Wook Min

Qingwen Min

Yasushi Mitsuda

Norimi Mizutani

Junko Morimoto

Takuhiko Murakami

Kazuaki Naito

Tomoaki Nakamura

Atsushi Nakashima

Hideyuki Niwa

Anna Nogalska

Tatsuhiro Ohkubo

Tetsuya Ooishi

Chengzhong Pan

Sohyun Park

Habib Ramezani

José V. Roces-Díaz

Elizabeth Ruedig

Masaru Sakai

Takashi Sakamaki

Methsiri Samarakoon

Sawahiko Shimada

Yukihiro Shimatani

Yoshiko Shimono

Ryuichiro Shinohara

Youngkeun Song

David Sprague

Karolina Stark

Satoshi Suzuki

Kikuko Syoyama

Terumasa Takahashi

Chisato Takenaka

Atsushi Tamura

Norio Tanaka

Kazumi Tanida

Shingo Taniguchi

Yutaka Tateda

Mengistu Teramage

Hiroto Toda

Ryota Tsubaki

Makoto Umeda

Yanhui Wang

Jeffrey Whicker

Junji Yagisawa

Hiroyuki Yamada

Shoichiro Yamamoto

Sampei Yamashita

Genesis Yengoh

K. Tuluhan Yilmaz

Masashi Yokogawa

Tsumura Yoshihiko

Zengqiang Zhang