Table 2.

List of the 20 most used keywords in mental health research.

S. no.	Keyword	Occurrences
1	Depression	1355
2	Anxiety	955
3	Prevalence	568
4	Disorders	396
5	Anxiety disorders	318
6	Major depression	310
7	Comorbidity	290
8	Mental health	245
9	Symptoms	235
10	Primary care	224
11	Validation	214
12	Epidemiology	208
13	Validity	207
14	Mental health	214
15	Health	192
16	Meta analysis	175
17	Major depressive disorder	179
18	Panic disorder	165
19	Primary care	157
20	Mental disorders	166