About the Authors

Nobuhisa Ishiguro

nishigur@med.hokudai.ac.jp

Affiliation Department of Pediatrics, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan

Naoko Koseki

Affiliation Department of Pediatrics, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan

Miki Kaiho

Affiliation Department of Pediatrics, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan

Tadashi Ariga

Affiliation Department of Pediatrics, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan

Hideaki Kikuta

Affiliation Pediatric Clinic, Touei Hospital, Sapporo, Hokkaido, Japan

Takehiro Togashi

Affiliation Hokkaido Anti–Tuberculosis Association Sapporo Fukujuji Clinic, Sapporo, Hokkaido, Japan

Koji Oba

Affiliations Department of Biostatistics, School of Public Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan, Interfaculty Initiative in Information Studies, The University of Tokyo, Tokyo, Japan

Keisuke Morita

Affiliation Department of Pediatrics, Asahikawa Red Cross Hospital, Asahikawa, Hokkaido, Japan

Naoko Nagano

Affiliation Nagano Pediatric Clinic, Asahikawa, Hokkaido, Japan

Masanori Nakanishi

Affiliation Deparment of Pediatrics, Kushiro Red Cross Hospital, Kushiro, Hokkaido, Japan

Kazuya Hara

Affiliation Deparment of Pediatrics, Kushiro Red Cross Hospital, Kushiro, Hokkaido, Japan

Kyosuke Hazama

Affiliation Hazama Pediatric Clinic, Muroran, Hokkaido, Japan

Toru Watanabe

Affiliation Watanabe Pediatric Allergy Clinic, Sapporo, Hokkaido, Japan

Tatsuru Yamanaka

Affiliation Yamanaka Tatsuru Pediatric Clinic, Sapporo, Hokkaido, Japan

Satoshi Sasaki

Affiliation Department of Pediatrics, Aiiku Hospital, Sapporo, Hokkaido, Japan

Hideto Furuyama

Affiliation Deparment of Pediatrics, Japan Community Healthcare Organization Hokkaido Hospital, Sapporo, Hokkaido, Japan

Mutsuo Shibata

Affiliation Department of Pediatrics, Health Sciences University of Hokkaido, Sapporo, Hokkaido, Japan

Satoru Shida

Affiliation Deparment of Pediatrics, Ebetsu Municipal Hospital, Ebetsu, Hokkaido, Japan

Akihito Ishizaka

Affiliation Sumiyoshi Kodomo Clinic, Chitose, Hokkaido, Japan

Yuichi Tabata

Affiliation Iwamizawa Pediatric and Gynecology Clinic, Iwamizawa, Hokkaido, Japan

Hayato Aoyagi

Affiliation Deparment of Pediatrics, Obihiro Kyokai Hospital, Obihiro, Hokkaido, Japan

Hiroyuki Naito

Affiliation Deparment of Pediatrics, Chitose City Hospital, Chitose, Hokkaido, Japan

Mikio Yoshioka

Affiliation Deparment of Pediatrics, KKR Sapporo Medical Center, Sapporo, Hokkaido, Japan

Atsuko Horino

Affiliation Department of Bacteriology II, National Institute of Infectious Diseases, Tokyo, Japan

Tsuyoshi Kenri

Affiliation Department of Bacteriology II, National Institute of Infectious Diseases, Tokyo, Japan

Hokkaido Pediatric Respiratory Infection Study Group

Membership of Hokkaido Pediatric Respiratory Infection Study Group is provided in the Acknowledgments.

Competing Interests

This research was funded in part by a Grant-in-Aid for Scientific Research (C), 2013 (25461577), from the Ministry of Education, Science, Sports and Culture of Japan and by a Health Science Research Grant (H24-Shinkou-Ippan-014) for Research on Emerging and Re-emerging Infectious Diseases, Labour and Welfare Programs from the Ministry of Health, Labour and Welfare of Japan. Pfizer Inc. provided grants for this study (A Prospective Observational Study of Antibiotic Treatment against Macrolide-Resistant Mycoplasma Pneumoniae Infections in Pediatric Patients, WS2419287) but was not involved in the design of the study or in enrollment of patients, data collection, analysis and interpretation, or preparation of the manuscript. We have declared that no competing interests exist along with any other relevant declarations relating to employment, consultancy, patents, products in development, marketed products, etc. This does not alter our adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceptualization: NI. Formal analysis: KO. Funding acquisition: NI. Investigation: NK MK AH TK. Methodology: NI. Resources: KM NN MN KHara KHazama TW TY SSasaki HF MS SShida AI YT HA HN. Supervision: TA HK TT. Validation: MY. Writing – original draft: NI.