Name Info Provider Link
subscription/membership/fee required Ingenta plc https://www.ingentaconnect.com/openurl?genre=article&issn=&volume=28&issue=4&spage=313&aulast=de Oliveira
Optic Nerve Disorders free resource MedlinePlus Health Information https://medlineplus.gov/opticnervedisorders.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=30531188.ui
subscription/membership/fee required Wolters Kluwer https://doi.org/10.1097/IJG.0000000000001150