Retraction notices

A comparison between collaborative and single surgeon approach in endoscopic endonasal surgery to sphenoid sinus

Type

Expression of concern

Notice date

4/17/2020 0:00

Journal

European Archives of Oto-Rhino-Laryngology

Publisher

Springer

Notice DOI

10.1007/s00405-020-05957-1

Original paper DOI

10.1007/s00405-019-05305-y

Reasons

• Copyright Claims
• Investigation by Company/Institution
• Lack of Approval from Third Party
• Objections by Author(s)

Matching venue names

Name match only, not an authoritative journal identifier.

• European Archives of Oto-Rhino-Laryngology