Table 1.

Search protocols by field and subject terms, and studies located by database.

Search Number	Field	Search Terms	Database Results
S1	SU (Subjects)	therapy or counselling or counseling or psychotherapy	PsychInfo 374,657 Medline 3,321,539 Academic S.P. 340,105
S2	SU (Subjects)	AND wilderness OR adventure OR nature* OR outdoor OR forest OR garden OR animal-assisted OR equine OR horticultural OR green* OR blue*	PsychInfo 1865 Medline 9883 Academic S.P. 1611
S3	Open	AND “systematic review” OR “meta-analysis”	PsychInfo 54 Medline 107 Academic S.P. 42