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Diakses 21 November 2019Everyday Health. https://www.everydayhealth.com/hypertension/preventing.aspx
Diakses 21 November 2019Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/high-blood-pressure/in-depth/high-blood-pressure/art-20045868
Diakses 21 November 2019Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/high-blood-pressure/diagnosis-treatment/drc-20373417
Diakses pada 11 Agustus 2020