Name Info Provider Link
Full text from free resource HAL archives ouvertes https://hal.archives-ouvertes.fr/ssa-00355981
subscription/membership/fee required Ingenta plc https://www.ingentaconnect.com/openurl?genre=article&issn=0095-6562&volume=79&issue=12&spage=1112&aulast=Gempp
Herniated Disk free resource MedlinePlus Health Information https://medlineplus.gov/herniateddisk.html