Table 1. Inclusion & exclusion criteria.

Inclusion criteria	Exclusion criteria
Preclinical research	Clinical research (i.e. research with potential for immediate clinical application)
Patient and public involvement (PPI)	Studies where the focus is on engagement or participation, rather than involvement
Reporting on PPI activities/initiatives that have been conducted in preclinical research	Discussion/commentary of the potential role of PPI in preclinical research
English language	Non-English language
Any location/any year