| Databases | Research question |
| Pubmed | (“health effects” AND cunsumption AND vegetables OR “vegetable mutants” AND “salt stress”) AND (y_10[Filter]) |
| Google scholar | Health effects of eating vegetables grown under salt stress |
| Cochrane | “Salt stress” AND vegetables AND health in Abstract |
| African journal online | “health effects” AND cunsumption AND vegetables OR “vegetable mutants” AND “salt stress” |