Insomnia

• State research center of preventive medicine — Moscow, Russia
• Research and Education Center of Moscow State University named after M.V. Lomonosov — Moscow, Russia
• First Moscow State Medical University — Moscow, Russia

• Neuro Trials — Atlanta, Georgia, United States
• Sleep Disorders Center of Georgia — Atlanta, Georgia, United States
• Clinilabs — New York, United States
• University of Rochester — Rochester, New York, United States

• Kaiser Permanente Center for Health Research/Northwest — Portland, Oregon, United States

• Dana Farber Cancer Institute — Boston, Massachusetts, United States

• Stanford University — Stanford, California, United States

• Østmarka Psychiatric Department, St Olavs Hospital — Trondheim, Norway

Not specified

• The Chinese University of Hong Kong — Hong Kong
• The Chinese University of Hong Kong — Shatin, Hong Kong

• The Neighbourhood Advice-Action Council — Hong Kong

• Department of Clinical Psychology — Amsterdam, North Holland, Netherlands