Dietary Reference Intakes https://ods.od.nih.gov/Health_Information/Dietary_Reference_Intakes.aspx
American College of Cardiology Hypertension Guidelines https://www.acc.org/latest-in-cardiology/articles/2017/11/08/11/47/mon-5pm-bp-guideline-aha-2017
(US) National Institute of Health Advance Care Directives
https://www.nia.nih.gov/health/advance-care-planning-healthcare-directives
(Canada) National Advance Care Planning Task Group https://www.advancecareplanning.ca/about-advance-care-planning/