Table 1.

Searching strategy in pubmed.

No.	Searching term
1	“aromatherapy” [Mesh]
2	aromatherapy* [Title/Abstract]
3	fragrance [Title/Abstract]
4	essential oil [Title/Abstract]
5	scent therapy [Title/Abstract]
6	aroma therapy [Title/Abstract]
7	1 OR 2 OR 3 OR 4 OR 5 OR 6
8	“anxiety” [Mesh]
9	“depression” [Mesh]
10	anxi* [Title/Abstract]
11	depress* [Title/Abstract]
12	emotion* [Title/Abstract]
13	psycholog* [Title/Abstract]
14	disorder* [Title/Abstract]
15	8 OR 9 OR 10 OR 11 OR 12 OR 13 OR 14
16	“neoplasms” [Mesh]
17	neoplas* [Title/Abstract]
18	cancer [Title/Abstract]
19	tumour [Title/Abstract]
20	tumor [Title/Abstract]
21	carcinoma [Title/Abstract]
22	malignancy [Title/Abstract]
23	16 OR 17 OR 18 OR 19 OR 20 OR 21 OR 22
24	7 AND 15 AND 23