Bronchitis

• Specialized Hospital for Active Treatment Pneumophthysiatric Disease "Kudoglu" — Plovdiv, Bulgaria
• Regional Dispensary for Pulmonary Diseases Rousse — Rousse, Bulgaria
• 5-th Multiprofile Hospital for Active Treatment — Sofia, Bulgaria
• MHAT "Alexandrovska" — Sofia, Bulgaria

Not specified

• Gelre Ziekenhuizen — Apeldoorn, Netherlands
• Deventer Ziekenhuis — Deventer, Netherlands
• Ziekenhuis Gelderse Vallei — Ede, Netherlands
• Bernhoven Ziekenhuis — Oss, Netherlands

• Srinagarind Hospital, Khon Kaen University and Khon Kaen Hospital, Ministry of Public Health — Khon Kaen, Changwat Khon Kaen, Thailand

• Washington University, Division of Pulmonary and Critical Care Medicine — St Louis, Missouri, United States

• National Institutes of Health Clinical Center — Bethesda, Maryland, United States

• Stanford Cancer Institute — Palo Alto, California, United States
• University of Michigan Cancer Center — Ann Arbor, Michigan, United States
• MD Anderson Cancer Center — Houston, Texas, United States
• Fred Hutch/University of Washington Cancer Consortium — Seattle, Washington, United States

• Karolinska Institutet — Huddinge, Sweden

• Massachusetts General Hospital Cancer Center — Boston, Massachusetts, United States

• UPMC Children's Hospital of Pittsburgh — Pittsburgh, Pennsylvania, United States