Acknowledgments

The Editor-in-Chief, together with all the members of the editorial staff of Pediatrics International, wish to extend cordial thanks to the reviewers who have contributed their time and effort in reviewing manuscripts submitted and improving the quality of this journal. The reviewers for the year 2021 were as follows: ABE, Katsuaki Chiba Kaihin Municipal Hospital ABE, Sarah National Cancer Center Japan ABE, Takaaki Jichi Medical School ABE, Yoshifusa Showa University School of Medicine ABUKAWA, Daiki Miyagi Children's Hospital ADACHI, Masanori Kanagawa Children's Medical Center ADACHI, Motoi St. Mary's Hospital ADLAN, Aida Syarinaz Binti Ahmad University of Malaya Medical Centre, Malaysia AE, Ryusuke Jichi Medical University AHMAD FAUZI, Aishah University of Malaya Faculty of Medicine, Malaysia AIDA, Jun Tohoku University Graduate School of Dentistry AIZAWA, Yuta Niigata University Graduate School of Medical and Dental Sciences AKAGAWA, Shohei Kansai Medical University AKAGAWA, Yuko Kansai Medical University AKALIN, Figen Marmara University, Turkey AKAMINE, Keiji Tokyo Metropolitan Children's Medical Center AKAMINE, Yoko Osaka City General Hospital AKASHI, Masayuki Saitama City Hospital AKAY, Aynur Dokuz Eylul Universitesi Hastanesi, Turkey AKIN, Alper Dicle Universitesi Tip Fakultesi, Turkey AKITA, Sadanori Nagasaki University Graduate School of Biomedical Science AKIYAMA, Louis Tokyo Metropolitan Children's Medical Center AKIYAMA, Takeshi Nagano College of Nursing AKIYAMA, Tomoyuki Okayama University Hospital AKTAN, Gül Ege University, Turkey AKUTSU, Hidenori National Center for Child Health and Development AKUTSU, Yuko Tokyo Medical and Dental University ALDINGER, Kimberly University of Southern California Zilkha Neurogenetic Institute, US AL-HAMMOURI, Mohammed Jordan University of Science and Technology Faculty of Nursing, Jordan ALISHBAYLI, Gulzar Istanbul University-Cerrahpasa, Turkey ALLEGAERT, Karel Rotterdam School of Management, Erasmus University, Netherlands ALOTAIBI, Ahlam King Abdullah bin Abdulaziz University Hospital, Saudi Arabia AMAGASA, Shunsuke Nagano Children's Hospital AMEMIYA, Shin Saitama Medical University ANDO, Hisami Aichi Developmental Disability Center AOKI, Kazunori Hyogo Prefectural Hobe Children’s Hospital AOKI, Takahiro Chiba University Graduate School of Medicine ARAHORI, Hitomi Osaka University Graduate School of Medicine ARAI, Hirokazu Akita Red Cross Hospital ARAI, Katsuhiro National Center for Child Health and Developm