Pleural Effusion

• University Hospital centre "Mother Theresa" Anesthesia & critical Care — Tirana, Albania
• Cliniques Universitaires Saint Luc — Brussels, Belgium
• General Hospital "Prim.dr Abdulah Nakas" Departement of Anaesthesia and intensive care — Sarajevo, Bosnia and Herzegovina
• Heart Center — Sarajevo, Bosnia and Herzegovina

• Vanderbilt University Medical Center — Nashville, Tennessee, United States

• Pediatric Emergency Unit, S. Orsola-Malpighi Hospital — Bologna, BO, Italy

• Assuit University hospital — Asyut, Egypt
• Alaa Salah Abdel gany — Asyut, Egypt

• Singapore General Hospital — Singapore

• Central Finland central hospital — Jyväskylä, Finland
• Kuopio university hospital — Kuopio, Finland
• Saarikka Primary Care Public Utility — Saarijärvi, Finland
• Tampere university hospital — Tampere, Finland

Not specified

• Charité - Universitaetsmedizin Berlin — Berlin, Germany

• H. Lee Moffitt Cancer Center and Research Institute — Tampa, Florida, United States

• South Texas Health Care System, San Antonio, TX — San Antonio, Texas, United States