PubMed:: "Peer Group"[Mesh] OR spm[tiab] OR spms[tiab] OR experiential expert*[tiab] OR empirical expert*[tiab] OR ((peer[tiab] OR peers[tiab]) AND (mentor*[tiab] OR partner*[tiab] OR training*[tiab] OR learning*[tiab] OR model[tiab] OR models[tiab] OR expert*[tiab] OR support*[tiab] OR intervention*[tiab] OR professional*[tiab] OR service[tiab] OR work force*[tiab] OR workforce*[tiab])) OR spm[ot] OR spms[ot] OR experiential expert*[ot] OR empirical expert* OR ((peer[ot] OR peers[ot]) AND (mentor*[ot] OR partner*[ot] OR training*[ot] OR learning*[ot] OR model[ot] OR models[ot] OR expert*[ot] OR support*[ot] OR intervention*[ot] OR professional*[ot] OR service[ot] OR work force*[ot] OR workforce*[ot]));; Embase.com:: 'peer group'/exp OR ((peer OR peers) NEAR/3 (support* OR counsel* OR training* OR professional*)):ab,ti OR (mentor* NEAR/3 program*):ab,ti;; CI:: ( (MH "Peer Group") OR (MH "Peer Counseling") ) OR TI ( spm OR spms OR (((peer OR peers) AND (support* OR counsel* OR training* OR professional*))) OR (mentor* AND program*) ) OR AB ( spm OR spms OR (((peer OR peers) AND (support* OR counsel* OR training* OR professional*))) OR (mentor* AND program*) );; PsycInfo:: ( DE "Peer Relations" OR DE "Peer Counseling" ) OR TI ( spm OR spms OR (((peer OR peers) AND (support* OR counsel* OR training* OR professional*))) OR (mentor* AND program*) ) OR AB ( spm OR spms OR (((peer OR peers) AND (support* OR counsel* OR training* OR professional*))) OR (mentor* AND program*) );; Cochrane Library:: (mentor* and program*) or ((peer or peers) and (support* or counsel* or training* or professional*)):ti,ab,kw