Text and Data Mining valid from 2019-10-30
Received: 14 October 2019
Accepted: 14 October 2019
First Online: 30 October 2019
Compliance with Ethical Standards
: None currently (former investigator Artecol, Artefill and Bellafill > 2 years ago)
: This article does not contain any studies with human participants or animals performed by any of the authors.
: For this type of study, informed consent is not required.