Vomiting

• Anshan Tumor Hospital — Anshan, Liaoning, China
• Second Affiliated Hospital of Dalian Medical University — Dalian, Liaoning, China
• The First Affiliated Hospital of Dalian Medical University — Dalian, Liaoning, China
• The First Hospital of Liaoning Medical University — Jinzhou, Liaoning, China

• Dongzhimen Hospital, Beijing University of Chinese medicine — Beijing, Beijing Municipality, China
• Guanganmen Hospital,China Academy of Chinese Medical Sciences — Beijing, Beijing Municipality, China
• Xiyuan Hospital, China Academy of Chinese Medical Sciences — Beijing, China

• Mayo Clinic Scottsdale — Scottsdale, Arizona, United States
• Aurora Presbyterian Hospital — Aurora, Colorado, United States
• Boulder Community Hospital — Boulder, Colorado, United States
• Penrose Cancer Center at Penrose Hospital — Colorado Springs, Colorado, United States

• CCOP - Scottsdale Oncology Program — Scottsdale, Arizona, United States
• CCOP - Carle Cancer Center — Urbana, Illinois, United States
• CCOP - Iowa Oncology Research Association — Des Moines, Iowa, United States
• Siouxland Hematology-Oncology — Sioux City, Iowa, United States

• Preventive Medicine center — Thanh Sơn, Phu Tho, Vietnam

• Preventive Medicine Center — Thanh Sơn, Phu Tho, Vietnam

Not specified

• Department of Oncology, Imam Reza Hospital, Mashhad University of Medical Sciences — Mashhad, Razavi Khorasan Province, Iran

• UH Besancon — Besançon, France
• AP-HP Jean Verdier — Bondy, France
• UH Bordeaux — Bordeaux, France
• UH Clermont Ferrand — Clermont-Ferrand, France

• Indiana University Melvin and Bren Simon Cancer Center — Indianapolis, Indiana, United States
• Siteman Cancer Center — St Louis, Missouri, United States
• Nebraska Cancer Specialists — Omaha, Nebraska, United States
• MUSC Hollings Cancer Center — Charleston, South Carolina, United States