Vol.257 No. 1 MAY 2022

Regular Contributions
Effectiveness of mRNA COVID-19 Vaccines in Japan during the Nationwide Pandemic of the Delta Variant Tetsuya Akaishi, Shigeki Kushimoto, Yukio Katori, Noriko Sugawara, Kaoru Igarashi, Motoo Fujita, Shigeo Kure, Shin Takayama, Michiaki Abe, Akiko Kikuchi, Kota Ishizawa, Yoshiko Abe, Hiroyuki Imai, Yohei Inaba, Yoko Iwamatsu-Kobayashi, Takashi Nishioka, Ko Onodera and Tadashi Ishii [PDF]	Vol. 257, No. 1 pp.1-6, 2022
Usefulness of Right Ventricular Free Wall Strain Obtained with Two-Dimensional Speckle-Tracking Echocardiography in Patients with Repaired Tetralogy of Fallot and Pulmonary Regurgitation Junko Fujiwara, Shunsuke Tatebe, Kotaro Nochioka, Hideki Ota, Yasuharu Funamizu, Takashi Miki, Yoshikatsu Saiki, Satoshi Yasuda and Yoshifumi Saijo [PDF]	Vol. 257, No. 1 pp.7-15, 2022
Increased Difficulties in Maternal Perception of Decreased Fetal Movement in Cases of Severe Fetal Growth Restriction: A Population-Based Study in Japan Shinsuke Tokoro, Shigeki Koshida, Shunichiro Tsuji, Daisuke Katsura, Tetsuo Ono, Takashi Murakami and Kentaro Takahashi [PDF]	Vol. 257, No. 1 pp.17-22, 2022
Association between Recurrence or Exacerbation at Time of Disaster and Allergic Symptoms Several Years Later in Schoolchildren with Asthma or Atopic Dermatitis: The ToMMo Child Health Study Masako Miyashita, Taku Obara, Mami Ishikuro, Masahiro Kikuya and Shinichi Kuriyama [PDF]	Vol. 257, No. 1 pp.23-32, 2022
Increased PD-L1 Expression in Acquired Cisplatin-Resistant Lung Cancer Cells via Mir-181a Yingying Chen, Wei Song, Yuan Gao, Xiu Dong and Xinping Ji [PDF]	Vol. 257, No. 1 pp.33-43, 2022
Changes in the Quality of Life of Patients with Left Ventricular Assist Device and their Caregivers in Japan: Retrospective Observational Study Fumika Suzuki, Hiroe Sato, Masatoshi Akiyama, Miki Akiba, Osamu Adachi, Taku Harada, Yoshikatsu Saiki and Masahiro Kohzuki [PDF]	Vol. 257, No. 1 pp.45-55, 2022
Serological Screening of Immunoglobulin G against SARS-CoV-2 Nucleocapsid and Spike Protein before and after Two Vaccine Doses among Healthcare Workers in Japan Suguru Hiramoto, Daichi Miyashita, Takao Kimura, Takahiko Niwa, Azusa Uchida, Maika Sano, Mai Murata, Takumi Nagasawa, Katsuhiko Tsunekawa, Tomoyuki Aoki, Akihiro Yoshida, Toshimitsu Kato, Kunio Yanagisawa, Yutaka Tokue and Masami Murakami [PDF]	Vol. 257, No. 1 pp.57-64, 2022
Disturbance of Gastrointestinal Cancers Diagnoses by the COVID-19 Pandemic in a Depopulated Area of Japan: A Population-Based Study in Akita Prefecture Katsunori Iijima, Mario Jin, Masahito Miura, Kenta Watanabe, Noboru Watanabe, Yosuke Shimodaira, Shigeto Koizumi, Fumio Tobori and Satoru Motoyama [PDF]	Vol. 257, No. 1 pp.65-71, 2022
Transient Type 3 Renal Tubular Acidosis during Cyclic Vomiting Syndrome Naonori Kumagai, Tomomi Kondoh, Yuji Matsumoto and Yohei Ikezumi [PDF]	Vol. 257, No. 1 pp.73-76, 2022
Perinatal Care Preparedness in Kochi Prefecture for When a Nankai Trough Earthquake Occurs: Action Plans and Disaster Liaisons for Pediatrics and Perinatal Medicine Takafumi Watanabe, Chiaki Katata, Sachio Matsushima, Yusuke Sagara and Nagamasa Maeda [PDF]	Vol. 257, No. 1 pp.77-84, 2022