I have sometimes felt the need to search for articles pertaining to silver 
and/or the use of. This 
below looks useful. At least some peer-reviewed doors seem to be open.
OK, 
Tony

FOR IMMEDIATE RELEASE
Orthomolecular Medicine News Service, July 25, 2020
How to Search Using PubMed and other 
Life Science Databases
by Robert G. Smith, PhD
https://orthomolecular.acemlna.com/lt.php?s=81b20b397c08de2cff4f29afa0dffa95&i=164A168A
1A7906