Wooridul Spine Hospital, Seoul, Korea, Republic of
Dienst Kindergeneeskunde, Edegem, Belgium
University Hospital Wales, Cardiff, Wales, United Kingdom
Centre Hospitalier General, Le Havre, France
University "Federico II" of Naples, Naples, Italy
Cliniques Universitaires Saint Luc, Bruxelles, Belgium
CHU de Liege, Liege, Belgium
Pituitary Center, Los Angeles, California, United States
Johns Hopkins University School of Medicine, Baltimore, Maryland, United States
Northwestern Medical Facility, Chicago, Illinois, United States
Prince of Wales Hospital, Shatin, Hong Kong
Siriraj Hospital, Bangkok, Thailand
University Hospital of Malaya Medical Centre, Kuala Lumpur, Malaysia
Neurological Institute, Phoenix, Arizona, United States
Plastic Eye Surgery Association, Pensacola, Florida, United States
Columbia-Presbyterian Medical Center, New York, New York, United States
St Josephs Hospital, Auburn, New South Wales, Australia
Box Hill Hospital, Box Hill, Victoria, Australia
Austin Health, Heidelberg, Victoria, Australia
Westmead Hospital, Westmead, New South Wales, Australia
Clinique Universitaire St. LUC, Bruxelles, Belgium
Institut Jules Bordet, Bruxelles, Belgium
Clinique Notre-Dame, Hermalle-sous-Huy, Belgium
Faculty Nemocnice-III, Brno, Czechia
Consulting Room of Proctology, Gdansk, Poland
Thomayer's Memorial Hospital, Prague, Czechia