Abdominal Abscess

• University of Alabama at Birmingham — Birmingham, Alabama, United States

• Zagazig University — Zagazig, Egypt

• Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine — Seoul, South Korea

Not specified

• Kaiser Foundation Hospital — Honolulu, Hawaii, United States

• Children's Mercy Hospital — Kansas City, Missouri, United States

• Helsinki University Central Hospital, Meilahti Hospital — Helsinki, Finland

• Department of Surgery, Jinling Hospital — Nanjing, Jiangsu, China

• Multiple Cities, Taiwan

• Guoxuexiang, Chengdu, China
• Shengyang, Liaoning, China
• Hangzhou, Zhejiang, China
• Beijing, China