Prehypertension

• Biofortis Inc. — Addison, Illinois, United States
• Dr. William O'Mahony Medicine Professional Corporation — Corunna, Ontario, Canada
• Dr. Steven V. Zizzo Medicine Professional Corporation — Hamilton, Ontario, Canada
• Milestone Research — London, Ontario, Canada

• The third hospital affiliated to the Third Military Medical University — Chongqing, Chongqing Municipality, China

• Yonsei universty medical center — Seoul, South Korea

• St. George's University of London, — London, United Kingdom

• Greenbrae, California, United States
• San Diego, California, United States
• Daytona Beach, Florida, United States
• Miami, Florida, United States

• The First Affiliated Hospital, Sun Yat-sen University — Guangzhou, Guangdong, China

• FSU College of Human Sciences — Tallahassee, Florida, United States

• Hospital de Clínicas de Porto Alegre, UFRGS — Porto Alegre, Rio Grande do Sul, Brazil
• Hospital de Clínicas de Porto Alegre — Porto Alegre, Rio Grande do Sul, Brazil

Not specified

• National Institute for Health and Welfare — Helsinki, Finland