Mitral Valve Stenosis

• Fujian Provincial Hospital, Affiliated to Fuzhou University — Fuzhou, Fujian, China
• Renmin Hospital of Wuhan University — Wuhan, Hubei, China
• Xiangya Hospital of Central South University — Changsha, Hunan, China
• Second Xiangya Hospital of Central South University — Changsha, Hunan, China

• Assistance Publique Hôpitaux de Paris — Paris, Île-de-France Region, France

• Deutsches Herzzentrum München des Freistaates Bayern, Technische Universität München — Munich, Bavaria, Germany

• Hospital Ana Nery - HAN/SESAB — Salvador, Estado de Bahia, Brazil
• Irmandade da Santa Casa de Misericordia de Porto Alegre - ISCMPA — Porto Alegre, Rio Grande do Sul, Brazil
• InCor - Instituto do Coração do Hospital das Clínicas da FMUSP — São Paulo, Brazil

• Education Developmen Center — Shiraz, Fars, Iran

• Scripps Green Hospital/Scripps Clinic — La Jolla, California, United States
• USC University Hospital, Department of Cardiothoracic Surgery — Los Angeles, California, United States
• The Heart Group, PC — Evansville, Indiana, United States
• Indiana Heart Hospital — Indianapolis, Indiana, United States

• Baystate Medical Center — Springfield, Massachusetts, United States

• Yale New Haven Hospital — New Haven, Connecticut, United States
• Christiana Care Health Services — Newark, Delaware, United States
• Emory University — Atlanta, Georgia, United States
• University of Maryland — Baltimore, Maryland, United States

Not specified

• Thoracic Ward, Aalborg University Hospital — Aalborg, Denmark
• Cardiology Ward Vendyssel Hospital — Hjørring, Denmark