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• Anhui Provincial Children's Hospital — Hefei, Anhui, China
• Jiangjin District Central Hospital of Chongqing — Chongqing, Chongqing Municipality, China
• The First Affiliated Hospital of Guangzhou University of Chinese Medicine — Guangzhou, Guangdong, China
• Zunyi First People's Hospital — Zunyi, Guizhou, China

Not specified

• GSK Investigational Site — Foley, Alabama, United States
• GSK Investigational Site — Litchfield Park, Arizona, United States
• GSK Investigational Site — Phoenix, Arizona, United States
• GSK Investigational Site — Los Angeles, California, United States

• Aditya Multi Specialty Hospital — Guntur, Andhra Pradesh, India
• KLE's Dr Prabhakar Kore Hospital & Medical Research Centre — Belagavi, Karnataka, India
• ACE Hospital and Research Centre — Pune, Maharashtra, India
• Hindusthan Hospital — Coimbatore, Tamil Nadu, India

• CHRISTUS Spohn Hospital — Corpus Christi, Texas, United States

• First Moscow State Medical University named after I.M. Sechenov/Center for Clinical Research of Drugs — Moscow, Russia

• Ajou University Hospital — Suwon, Gyeongki-do, South Korea

• Allergy clinic, Sahlgrenska University Hospital — Gothenburg, Västra Götaland County, Sweden

• Kingston Health Sciences Centre — Kingston, Ontario, Canada

• GSK Investigational Site — Jasper, Alabama, United States
• GSK Investigational Site — Litchfield Park, Arizona, United States
• GSK Investigational Site — Scottsdale, Arizona, United States
• GSK Investigational Site — Little Rock, Arkansas, United States