The following investigators enrolled patients in the LUCID study: Yoshiyasu Karino, Shuhei Hige, Masatomo Sekiguchi (Hokkaido P.W.F.A.C. Sapporo-Kosei General Hospital), Koji Ogawa, Hideaki Miyoshi, KyuYong Cho (Hokkaido University Hospital), Masaru Baba, Atsushi Inoue (Japan Community Health Care Organization Hokkaido Hospital), Kazuobu Aso, Mitsuyoshi Okada (Asahikawa Medical University), Yasuhiro Takikawa, Kei Endo, Yasushi Ishigaki, Hirobumi Togashi (Iwate Medical University), Michiaki Unno, Takanori Morikawa, Hideki Katagiri, Shojiro Sawada (Tohoku University Hospital), Hiromasa Ohira, Atsushi Takahashi, Michio Shimabukuro, Akihiro Kudo (Fukushima Medical University Hospital), Naomi Tanaka, Junko Mitsuhashi, Toshifumi Tokai (Koyama Memorial Hospital), Yasushi Matsuzaki, Tadashi Ikegami (Tokyo Medical University Ibaraki Medical Center), Masato Imai (Utsunomiya Memorial Hospital), Kou Nishikawa, Sadao Takahashi (Ageo Central General Hospital), Sumiko Nagoshi, Kosuke Maezawa, Masafumi Matsuda (Saitama Medical Center), Tetsuhiro Chiba, Masayuki Yokoyama, Koutaro Yokote, Yoko Hidetaka (Chiba University Hospital), Mitsuhiko Moriyama, Hitomi Nakamura, Midori Fujishiro (Nihon University Hospital), Tadakazu Hisamatsu, Kaori Nishikawa (Kyorin University Hospital), Toshihiko Nouchi, Yuki Sakurai, Harumi Daikoku (Showa General Hospital), Michinori Murayama (Self-Defence Forces Central Hospital), Yoshinori Saigusa, Takashi Matsui (Toho Umiversity Medical Center Ohashi Hospital), Kazuhiko Koike, Ryosuke Tateishi, Naoto Kubota, Takayoshi Sasako (The University of Tokyo Hospital), Hidenari Nagai, Takanori Mukozu, Takahisa Hirose, Masahiko Miyagi (Toho Umiversity Medical Center Omori Hospital), Sumio Watanabe, Kazuyoshi Kon, Hirotaka Watada, Hiroaki Sato (Juntendo University Hospital), Akira Mizuki, Masanori Miura (Keiyu Hospital), Yuzuru Sato, Rena Kaneko, Kumiko Hamano, Hiroko Kato (Japan Organization of Occupational Health and Safety Kanto Rosai Hospital), Kentaro Kikuchi, Yusuke Kajiyama (Teikyo University Hospital, Mizonokuchi), Makoto Chuma, Hiroko Ito (Yokohama City University Medical Center), Hiroshi Yasuda, Nobuyuki Matsumoto, Yasushi Tanaka, Yoshio Nagai (St. Marianna University School of Medicine Hospital), Kento Imajo, Yasuo Terauchi, Yuzuru Ito (Yokohama City University Hospital), Shuji Terai, Hirohito Sone, Satoshi Matsunaga (Niigata University Medical & Dental Hospital), Kiyoshi Furuta (Matsumoto Medical Center), Eiji Tanaka, Takeji Umemura, Mitsuhisa Komatsu, Yoshihiko Sato (Shinshu University Hospital), Yoshinobu Hinoue, Akiko Shimizu (Toyama City Hospital ), Terumi Takahara, Kengo Kawai, Kazuyuki Tobe, Isao Usui (Toyama University Hospital), Hajime Ohta, Takuya Komura, Seiichiro Kurita (National Hospital Organization Kanazawa Medical Center), Nobuyuki Toshikuni, Daisuke Koya, Ai Watanabe (Kanazawa Medical University Hospital), Yasunari Nakamoto, Tomoyuki Nemoto, Tadashi Konoshita (University of Fukui Hospital), Yoshimasa Kobayashi, Shin Shimoyama (Hamamatsu University Hospital), Daisaku Nishimura (Toyota Kosei Hospital ), Masami Imoto, Sayori Nakashima, Tatsuo Mizuno (Kariya Toyota General Hospital), Kentaro Yoshioka, Naoto Kawabe, Suzuki Atsushi, Ayako Kakita (Fujita Health University Hospital), Yuji Kojima, Kazuya Murata (Japanese Red Cross Ise Hospital), Yoshiyuki Takei, Motoo Iwasa, Yutaka Yano (Mie University Hospital), Masahiko Kondo, Motozumi Okamoto (Japanese Red Cross Otsu Hospital), Hiroyuki Kimura (Japanese Red Cross Kyoto Daiichi Hospital), Hiroyuki Marusawa, Yuji Eso, Yoshihito Fujita (Kyoto University Hospital), Hideki Fujii, Masaaki Inaba, Masanori Emoto (Osaka City University Hospital), Takeshi Kurose (Kansai Electric Power Hospital), Takeshi Okanoue, Toshihide Shima, Shinichi Mogami (Saiseikai Suita Hospital), Rinako Tsuda, Emiko Nomura (Kansai Medical University Medical Center), Masayoshi Ohnishi (Osaka General Hospital of West Japan Railway Company), Masatoshi Kudo, Naoshi Nishida, Hiroshi Ikegami, Hiroyuki Ito (Kindai University Hospital), Hirokazu Oyamada, Yasutaka Nagao, Hiroshi Okada (Matsushita Memorial Hospital), Masahide Oshita, Tetsuyuki Yasuda (Osaka Police Hospital), Toshifumi Ito, Nobuyuki Tatsumi (Japan Community Health care Organization Osaka Hospital), Teruhisa Morikawa (Akashi City Hospital), Noriko Takahara (Ako City Hospital), Takumi Fukumoto, Motofumi Tanaka, Wataru Ogawa, Yushi Hirota (Kobe University Hospital), Seitetsu Yung, Keiji Iida (Hyogo Prefectural Kakogawa Medical Center), Hitoshi Yoshiji, Naotaka Shimozato (Nara Medical University Hospital), Gen Inoue, Tomonao Hirobata (Japanese Red Cross Wakayama Medical Center), Junichi Okano, Tsuyoshi Okura (Tottori University Hospital ), Yasushi Uchida, Toshiaki Sato (Matsue Red Cross Hospital), Miwa Kawanaka, Takatoshi Anno (Kawasaki Medical School General Medical Center), Keisuke Hino, Yasuyuki Tomiyama, Hideaki Kaneto (Kawasaki Medical School Hospital), Shinichi Fujioka, Eri Sasaki, Tatsuaki Nakato (Okayama Saiseikai General Hospital), Keiji Tsuji, Yohji Honda, Nozomu Kamei, Mitsue Miyahara (Hiroshima Red Cross Hospital & Atomic-bomb Survivors Hospital), Tsutomu Masaki, Kyoko Oura (Kagawa University Hospital), Yoshiyasu Kisaka, Shozo Miyauchi, Isao Makino (Uwajima City Hospital), Yoichi Hiasa, Yohei Koizumi, Osawa Haruhiko, Toshimi Hadate (Ehime University Hospital), Takeaki Sato, Isao Ichino (National Hospital Organization Kokura Medical Center), Hideyuki Nomura, Nobuyuki Yamashita (Shin-Kokura Hospital), Hiroshi Maeno, Sunao Matubayashi, (Fukuoka Tokushukai Hospital), Kenta Motomura, Yukie Ishibashi, Makoto Ide, Yoko Moribe (Aso Iizuka Hospital ), Masaru Harada, Michihiko Shibata, Yosuke Okada, Keiichi Torimoto (Hospital of University of Occupational and Environmental Health, Japan), Takuji Torimura, Takumi Kawaguchi, Yuji Tajiri (Kurume University Hospital), Nobuhiko Higashi, Sakae Nohara (Steel Memorial Yawata Hospital), Yasunori Kawaguchi, Toru Yoshimura (Saga-ken Medical Centre Koseikan), Keizo Anzai, Shinji Iwane, (Saga University Hospital), Kazuhiko Nakao, Naota Taura, Norio Abiru, Yoshitaka Mori (Nagasaki University Hospital), Masataka Seike, Mizuki Endo (Oita University Hospital), Tadanobu Kuribayashi (Koga General Hospital).