Table 1.

Inclusion and exclusion criteria.

Inclusion criteria	Exclusion criteria
Application human medicine	Publications on basic research or animal experiments without direct clinical application
Interventional product classified as ATMP	Articles targeting rules and regulations were used as background information only
Interventional product is either a licensed ATMP, an ATMP with a marketing license application or applied via hospital exemption or in phase III or IV clinical trial	Articles on phase I and II clinical trials if no subsequent phase III trial was reported
Intervention taken place within an EU member state	Other than European countries
Language of publication German or English	Articles in languages other than English or German
	Articles not publicly available