<http://schema.org/keywords>
"age-related macular degeneration,coronary artery disease,vision loss,heart disease,macular degeneration and heart disease,heart disease prevention,prevention of AMD"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.belmarrahealth.com/age-related-macular-degeneration-coronary-artery-disease-older-adults-linked-study/>