Table 1. Patient/Population, Intervention, Comparison, Outcomes constituent terms and synonyms used to expand the scope of search.

Effects	Toluene	Health	Workers
“Effects”“Side Effects”“Consequences”“Toxicity”“Impact”“Reaction”“Health effects”“Repercussions”“Exposure”“Influence”“Adverse”“Risks”“Adverse Effects”“Hazards”“Short-term effects”“Long-term effects”“Results”“Outcome”“Action”	“Methylbenzene”“Phenylmethane”“Toluene Exposure”“Dracyl”“Toluene effects”	“Health”“Workers Health”“Health effects”	“Healthcare workers”“Workforce”“Industrial Workers”“Manufacturing”“Laborers”“Occupation”“Occupational”“Employees”
Phrases
“Effects of Toluene on the Health of Workers”“The effects of toluene on the health of workers”“Effects of Toluene”“Acute effects of toluene”“Chronic effects of toluene”“Short-term effects of toluene”“Long-term effects of toluene”“Effects of toluene exposure health effects respiratory”“Occupational toluene exposure”“Effects of occupational toluene exposure”“Effects of toluene or methylbenzene on workers’ health”“Effects of toluene on workers”“What are the effects of toluene on the health of workers?”