Xerostomia

• University of Iowa — Iowa City, Iowa, United States
• Battelle Centers for Public Health Research and Evaluation — Durham, North Carolina, United States
• NIEHS, Research Triangle Park — Research Triangle Park, North Carolina, United States

• National Institutes of Health Clinical Center, 9000 Rockville Pike — Bethesda, Maryland, United States

• Michigan Cornea Consultants, P.C. — Southfield, Michigan, United States

Not specified

• Flaum Eye Institute at the University of Rochester — Rochester, New York, United States

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

• Eye & ENT Hospital of Fudan University — Shanghai, China

• Seoul National Unversity Hospital — Seoul, South Korea

• University of Sao Paulo General Hospital — São Paulo, Brazil

• Médecine Interne — Limoges, France
• Opthalmologie — Limoges, France