Clostridium Infections

• Jingsu Provincial Centre of Disease Control and Prevention — Nanjing, Jiangsu, China

• Dazhu Center for Disease Prevention and Control — Dazhou, Sichuan, China
• Cuiping Center for Disease Prevention and Control — Yibin, Sichuan, China
• Xingwen Center for Disease Prevention and Control — Yibin, Sichuan, China

• Einstein College of Medicine/Montefiore Hospital — The Bronx, New York, United States

Not specified

• Center for Disease Control and Prevention, Qixingguan District, Bijie City — Bijie, Guizhou, China

• Fukui Aiiku Hospital — Fukui-shi, Fukui, Japan
• Oda Children's Allergy Clinic — Fukuoka, Japan
• Morooka Chirdren's Chikushi-dori Clinic — Fukuoka, Japan
• Shindo children's clinic — Fukuoka, Japan

Not specified

• Taihe County People's Hospital — Fuyang, Anhui, China
• The Second Affiliated Hospital of Anhui Medical University — Hefei, Anhui, China
• Peking University First Hospital — Beijing, Beijing Municipality, China
• Peking University People's Hospital — Beijing, Beijing Municipality, China

Not specified

• Department of Pediatrics, Faculty of Medicine, Chiang Mai University — Chiang Mai, Thailand