Double Lumen Tube Intubation

• The First Affiliated Hospital, Zhejiang University School of Medicine, — Hangzhou, Zhejiang, China
• Affiliated Hospital of Jiaxing University（The First Hospital of Jiaxing） — Jiaxing, Zhejiang, China
• The Second Affiliated Hospital of Jiaxing University（The Second Hospital of Jiaxing） — Jiaxing, Zhejiang, China

• Shaheed Mohtarma Benazir Bhutto Institute of Trauma — Karachi, Sindh, Pakistan

Not specified

• Ankara Ataturk Sanatorium Training and Research Hospital, Ankara, 06280 — Ankara, Turkey (Türkiye)

• Ankara Atatürk Sanatoryum Training and Research Hospital — Ankara, Keçiören, Turkey (Türkiye)

• Seoul National University Hospital — Seoul, South Korea

• Institut de cardiologie et de pneumologie de Québec — Québec, Quebec, Canada