Meibomian Gland Dysfunction

• McDonald Eye Associates — Fayetteville, Arkansas, United States
• Harvard Eye Associates — Laguna Hills, California, United States
• Center for Excellence in Eye Care — Miami, Florida, United States
• Chicago Cornea Consultants, Ltd. — Hoffman Estates, Illinois, United States

• Aston University — Birmingham, West Midlands, United Kingdom

• Deparment of ophthalmology, Heinrich-Heine-University — Düsseldorf, Germany

• Singapore National Eye Centre/ Singapore Eye Research Institute — Singapore

• Severance Hospital — Seoul, South Korea

• Rassoul Akram Hospital — Tehran, Tehran Province, Iran

• Centre for Contact Lens Research, University of Waterloo — Waterloo, Ontario, Canada

• Singapore National Eye Centre — Singapore

Not specified

• CHU d'Amiens — Amiens, France
• Hopital Pellegrin — Bordeaux, France
• CHU de Dijon — Dijon, France
• 76 Allée des Pins Tranquilles — Hossegord, France