Acknowledgement
The Editorial Staff members express their gratitude to the following individuals, whoserved as reviewers of manuscripts for the JMA Journal in 2021.

ADACHI Takuya
AKASHI Yoshihiro
AKIYAMA Minoru
ARATA Naoko
ARIMA Hisatomi
BABA Yoshifumi
BOUCHI Ryotaro
DARTANTO Teguh
EGUCHI Susumu
FUJIMURA Miki
FUJITA Kazutaka
FUKAI Kota
FUKUHARA Hideo
FUKUSHIMA Ryoji
FULDA Kimberly
GOTO Aya
GOTO Osamu
GOTO Rei
GOTO Rieko
HASEGAWA Daisuke
HASEGAWA Shunji
HASHIMOTO Daisuke
HASHIMOTO Koshi
HATANO Taku
HAYASHI Kuniyoshi
HAYASHI ReikoHIGASHI Yukihito
HIKOSAKA Makoto
HIRAGA Madoka
HIRAHARA Kiyoshi
HIRAMA Takashi
HIROMURA Keiju
HONDA Michitaka
HORI Yuichi
HORIE Seichi
HOSODA Kei
IDE Tomomi
IIJIMA Katsuya
IKEDA Yumie
IKEZOE Takayuki
IMAI Kenji
IMAI Yasushi
INAKI Noriyuki
INOMATA Masafumi
INOUE Manami
INOUE Yoshiaki
IRIE Hiroki
ISEKI Masako
ISHIBASHI ShunISHIGURO Takashi
ISHIHARA Soichiro
ISHIKAWA Seiji
KABASAWA Yuji
KAGABU Masahiro
KAI Hisashi

KAKOGAWA Jun
KAMATANI Yoichiro
KAMIYA Kentaro
KAMIYA Shigeru
KANAKUBO Yusuke
KANAMORI Masayuki
KANDA Hideyuki
KASEDA Yumiko
KATO Noriko
KAWA Shigeyuki
KAWABAWA Hiroshi
KAWAHARADA Nobuyoshi
KAWAKUBO Kazumichi
KAWAMOTO Yasuyuki
KIMURA Takahiro
KIRITO Keita
KITADA Munehiro
KITAMURA Taito
KIYOTA Hiroshi
KODAMA Yuki
KOMADA Yoko
KOMATSU Yasuhiro
KONO Koji
KOSAKA Shintaro
KUBOTA Toshiaki
KUMABE Toshihiro
KURASHIMA Yo
KURODA Tomohiro
KUROSAKI Fumio
KUWATANI Masaki
LI Zongjin
MAEKAWA Masato
MAEMOTO Atsuo
MAKINO Shintaro
MANABE Atsushi
MANDAI Shintaro
MASAKI Yasufumi
MASUDA Shin
MATSUBARA ShigekiMATSUDA Shinya
MATSUI Kunihiko
MATSUMOTO Riki
MATSUMOTO Tomoki
MATSUMOTO Yoshihisa
MATSUSHITA Hiromichi
MATSUYAMA Akifumi
MITSUKAWA Nobuyuki
MIYAKAWA Jimpei
MIYAMAE Takako
MIYAMOTO Katsuichi
MIYAWAKI Atsushi
MIYAZAKI Mariko
MIZUNO Shugo
MIZUSHIMA Hiroshi
MIZUSHINA Yoshiko

MORI Shuichi
NAGAI Shuntaro
NAGANO Tatsuya
NAGATA Daisuke
NAITO Shotaro
NAKACHI Ichiro
NAKAYAMA Masayuki
NISHI Nobuo
NISHIDA Toshirou
NISHIGORI Hidekazu
NISHIMURA Rimei
OBA Shino
OGIHARA Satoshi
OHARA Hiroshi
OHNUMA Shinobu
OISHI Yasuhisa
OKAMOTO Nami
OKAZAKI Kazuichi
OKUBO Yasushi
OKUNGU Vincent
ONO Masayoshi
ORIMO Tatsuya
OTANI Hiroyuki
OTSUKA Masayuki
OUE Takaharu
OYAMA JunOYAMA Kohta
OYAMA Yuta
PATEL Tejas K.
SADA Kenei
SADOHARA Michito
SAITO Hirokazu
SAITO Shinji
SAITOH Akihiko
SAKAGAMI Hiroyuki
SAKURAI Hitoshi
SATA Masashi
SATO Shoji
SATO Yukiyasu
SAWADA Koji
SEKI Masafumi
SHIEN Tadahiko
SHIGA Tomomi
SHIIYA Norihiko
SHIMA Masayuki
SHIMADA Hideaki
SHIME Nobuaki
SHIMIZU Hiroaki
SHIMIZU Toshiaki
SHINZAKI Shinichiro
SLIMANO FlorianSUGAYA Akiko
SUGIYAMA Takehiro
SUGIYAMA Yuko
SUNADA Yoshihide

SUZUKI Tomoko
TACHIHARA Motoko
TAGUCHI Satoru
TAKAHARI Daisuke
TAKAHASHI Masaya
TAKAHASHI Naohiko
TAKAYANAGI Hiroshi
TAKEHARA Kenji
TAKEI Yuji
TAKENAKA Katsuto
TAKESHITA Katsushi
TAKEUCHI Yasuhiro
TAMIYA Sadahiro
TANABE Akiyo
TANABE Masahiko
TANAKA Hiroaki
TANAKA Keiko
TANAKA Motohiko
TANBO Mitsuhiro
TATEISHI Ukihide
TATULLO MarcoTERAUCHI Masakazu
TERAUCHI Yasuo
TOGARI Taisuke
TOMIYAMA Hiroshi
TOMIZAWA Daisuke
TSUBOI Naotake
TSUCHIYA Junichi
TSUTA Koji
UEMATSU SatokoUESAKA Yoshikazu
UGAWA Yoshikazu
WADA Hideichi
WATANABE Hirohisa
WATANABE Jun
WATANABE Masafumi
WATANABE Ryosuke
WATANABE Toshihiko
YAMAGATA Zentaro
YAMAGUCHI Masafumi
YAMAGUCHI Shigeki
YAMAGUCHI Yukie
YAMAMOTO Kazuhiro
YAMAMOTO Takeshi
YAMAMURA Ken
YAMATO Masayuki
YAMAUCHI Hiroyoshi
YAMAZAKI Yu
YANAGIHARA Katsunori
YASUDA Shinsuke
YOKOMICHI Hiroshi
YOSHIDA Teruhiko
YUMIKURA Sei