Name Info Provider Link
subscription/membership/fee required HighWire https://bjo.bmj.com/lookup/pmidlookup?view=long&pmid=34489337
Macular Degeneration free resource MedlinePlus Health Information https://medlineplus.gov/maculardegeneration.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=34489337.ui
free resource PubMed Central https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/34489337/
free resource Europe PubMed Central https://europepmc.org/abstract/MED/34489337