Berkman ND, Lohr KN, Ansari M, et al. Grading the Strength of a Body of Evidence When Assessing Health Care Interventions for the Effective Health Care Program of the Agency for Healthcare Research and Quality: An Update. 2013 Nov 18. In: Methods Guide for Effectiveness and Comparative Effectiveness Reviews [Internet]. Rockville (MD): Agency for Healthcare Research and Quality (US); 2008. Available from: https://www​.ncbi.nlm​.nih.gov/books/NBK174881/. [PubMed: 24404627]

Cooke B, Ernst E. Aromatherapy: a systematic review. Br J Gen Pract. 2000;50(455):493–496. [PMC free article: PMC1313734] [PubMed: 10962794]

Aziz ZAA, Ahmad A, Setapar SHM, et al. Essential Oils: Extraction Techniques, Pharmaceutical And Therapeutic Potential - A Review. Current drug metabolism. 2018;19(13):1100–1110. [PubMed: 30039757]

Gonzalez-Mas MC, Rambla JL, Lopez-Gresa MP, Blazquez MA, Granell A. Volatile Compounds in Citrus Essential Oils: A Comprehensive Review. Frontiers in plant science. 2019;10:12. [PMC free article: PMC6370709] [PubMed: 30804951]

Chida Y, Steptoe A, Hirakawa N, Sudo N, Kubo C. The effects of psychological intervention on atopic dermatitis. A systematic review and meta-analysis. Int Arch Allergy Immunol. 2007;144(1):1–9. [PubMed: 17449959]

Snow LA, Hovanec L, Brandt J. A controlled trial of aromatherapy for agitation in nursing home patients with dementia. J Altern Complement Med. 2004;10(3):431–437. [PubMed: 15253846]

Carson CF, Hammer KA, Riley TV. Melaleuca alternifolia (Tea Tree) oil: a review of antimicrobial and other medicinal properties. Clin Microbiol Rev. 2006;19(1):50–62. [PMC free article: PMC1360273] [PubMed: 16418522]

Tariq S, Wani S, Rasool W, et al. A comprehensive review of the antibacterial, antifungal and antiviral potential of essential oils and their chemical constituents against drug-resistant microbial pathogens. Microb Pathog. 2019;134:103580. [PubMed: 31195112]

Joswiak D, Kinney ME, Johnson JR, et al. Development of a Health System-Based Nurse-Delivered Aromatherapy Program. J Nurs Adm. 2016;46(4):221–225. [PubMed: 27011157]

Knutson L, Johnson PJ, Sidebottom A, Fyfe-Johnson A. Development of a hospital-based integrative healthcare program. J Nurs Adm. 2013;43(2):101–107. [PubMed: 23343726]

Hardy M, Kirk-Smith MD, Stretch DD. Replacement of drug treatment for insomnia by ambient odour. Lancet. 1995;346(8976):701. [PubMed: 7658836]

Miake-Lye IM, Hempel S, Shanman R, Shekelle PG. What is an evidence map? A systematic review of published evidence maps and their definitions, methods, and products. Systematic reviews. 2016;5:28. [PMC free article: PMC4750281] [PubMed: 26864942]

McGowan J, Sampson M, Salzwedel DM, Cogo E, Foerster V, Lefebvre C. PRESS Peer Review of Electronic Search Strategies: 2015 Guideline Statement. J Clin Epidemiol. 2016;75:40–46. [PubMed: 27005575]

Wallace BC, Small K, Brodley CE, Lau J, Trikalinos TA. Deploying an interactive machine learning system in an evidence-based practice center: abstrackr. Proceedings of the 2nd ACM SIGHIT International Health Informatics Symposium (IHI). 2012:819–824.

Shea BJ, Grimshaw JM, Wells GA, et al. Development of AMSTAR: a measurement tool to assess the methodological quality of systematic reviews. BMC Med Res Methodol. 2007;7:10. [PMC free article: PMC1810543] [PubMed: 17302989]

Fung JK, Tsang HW, Chung RC. A systematic review of the use of aromatherapy in treatment of behavioral problems in dementia. Geriatr Gerontol Int. 2012;12(3):372–382. [PubMed: 22433025]

Biddiss E, Knibbe TJ, McPherson A. The effectiveness of interventions aimed at reducing anxiety in health care waiting spaces: a systematic review of randomized and nonrandomized trials. Anesth Analg. 2014;119(2):433–448. [PubMed: 24942321]

Hsu CH, Chi CC, Chen PS, Wang SH, Tung TH, Wu SC. The effects of aromatherapy massage on improvement of anxiety among patients receiving palliative care: A systematic review of randomized controlled trials. Medicine (Baltimore). 2019;98(9):e14720. [PMC free article: PMC6831411] [PubMed: 30817616]

Perry R, Terry R, Watson LK, Ernst E. Is lavender an anxiolytic drug? A systematic review of randomised clinical trials. Phytomedicine. 2012;19(8–9):825–835. [PubMed: 22464012]

Choi J, Lee JA, Alimoradi Z, Lee MS. Aromatherapy for the relief of symptoms in burn patients: A systematic review of randomized controlled trials. Burns. 2018;44(6):1395–1402. [PubMed: 29169701]

Wilkinson S, Barnes K, Storey L. Massage for symptom relief in patients with cancer: systematic review. J Adv Nurs. 2008;63(5):430–439. [PubMed: 18727744]

Sanchez-Vidana DI, Ngai SP, He W, Chow JK, Lau BW, Tsang HW. The Effectiveness of Aromatherapy for Depressive Symptoms: A Systematic Review. J Evid Based Complementary Altern Med. 2017;2017:1–21. [PMC free article: PMC5241490] [PubMed: 28133489]

Lee MS, Lee HW, Khalil M, Lim HS, Lim HJ. Aromatherapy for Managing Pain in Primary Dysmenorrhea: A Systematic Review of Randomized Placebo-Controlled Trials. J Clin Med. 2018;7(11):10. [PMC free article: PMC6262530] [PubMed: 30423839]

Bouya S, Ahmadidarehsima S, Badakhsh M, Balouchi A, Koochakzai M. Effect of aromatherapy interventions on hemodialysis complications: A systematic review. Complement Ther Clin Pract. 2018;32:130–138. [PubMed: 30057040]

Hur MH, Lee MS, Kim C, Ernst E. Aromatherapy for treatment of hypertension: a systematic review. J Eval Clin Pract. 2012;18(1):37–41. [PubMed: 20695948]

Chen SF, Wang CH, Chan PT, et al. Labor pain control by aromatherapy: A meta-analysis of randomized controlled trials. Women and Birth : Journal of the Australian College of Midwives. 2018;18:18. [PubMed: 30344029]

Hines S, Steels E, Chang A, Gibbons K. Aromatherapy for treatment of postoperative nausea and vomiting. The Cochrane Database of Systematic Reviews. 2018;3:CD007598. [PMC free article: PMC6494172] [PubMed: 29523018]

Matthews A, Haas DM, O’Mathuna DP, Dowswell T. Interventions for nausea and vomiting in early pregnancy. The cochrane Database of Systematic Reviews. 2015(9):CD007575. [PMC free article: PMC7196889] [PubMed: 26348534]

Koog YH, Jin SS, Yoon K, Min BI. Interventions for hemiplegic shoulder pain: systematic review of randomised controlled trials. Disabil Rehabil. 2010;32(4):282–291. [PubMed: 20055567]

Dimitriou V, Mavridou P, Manataki A, Damigos D. The Use of Aromatherapy for Postoperative Pain Management: A Systematic Review of Randomized Controlled Trials. J Perianesth Nurs. 2017;32(6):530–541. [PubMed: 29157760]

Lederer AK, Schmucker C, Kousoulas L, Fichtner-Feigl S, Huber R. Naturopathic Treatment and Complementary Medicine in Surgical Practice. Dtsch Arztebl Int. 2018;115(49):815–821. [PMC free article: PMC6369237] [PubMed: 30678751]

Babakhanian M, Ghazanfarpour M, Kargarfard L, et al. Effect of Aromatherapy on the Treatment of Psychological Symptoms in Postmenopausal and Elderly Women: A Systematic Review and Meta-analysis. J Menopausal Med. 2018;24(2):127–132. [PMC free article: PMC6127019] [PubMed: 30202763]

Khadivzadeh T, Najafi MN, Ghazanfarpour M, Irani M, Dizavandi FR, Shariati K. Aromatherapy for Sexual Problems in Menopausal Women: A Systematic Review and Meta-analysis. J Menopausal Med. 2018;24(1):56–61. [PMC free article: PMC5949309] [PubMed: 29765928]

Hu RF, Jiang XY, Chen J, et al. Non-pharmacological interventions for sleep promotion in the intensive care unit. The Cochrane Database of Systematic Reviews. 2015(10):CD008808. [PMC free article: PMC6517220] [PubMed: 26439374]

Lillehei AS, Halcon LL. A systematic review of the effect of inhaled essential oils on sleep. J Altern Complement Med. 2014;20(6):441–451. [PubMed: 24720812]

Hur MH, Song JA, Lee J, Lee MS. Aromatherapy for stress reduction in healthy adults: a systematic review and meta-analysis of randomized clinical trials. Maturitas. 2014;79(4):362–369. [PubMed: 25234160]

Li H, Zhao M, Shi Y, et al. The effectiveness of aromatherapy and massage on stress management in nurses: A systematic review. J Clin Nurs. 2019;28(3–4):372–385. [PubMed: 29964364]

Cao H, Yang G, Wang Y, et al. Complementary therapies for acne vulgaris. The Cochrane Database of Systematic Reviews. 2015;1:CD009436. [PMC free article: PMC4486007] [PubMed: 25597924]

Costa MF, Durco AO, Rabelo TK, Barreto RSS, Guimaraes AG. Effects of Carvacrol, Thymol and essential oils containing such monoterpenes on wound healing: a systematic review. J Pharm Pharmacol. 2019;71(2):141–155. [PubMed: 30537169]

Martin KW, Ernst E. Herbal medicines for treatment of fungal infections: a systematic review of controlled clinical trials. Mycoses. 2004;47(3–4):87–92. [PubMed: 15078424]

Ueki S, Matsunaka E, Swa T, Ohashi K, Makimoto K. Effectiveness of inhalation of aromatherapy in reducing anxiety in patients before colonoscopy: a systematic review protocol. JBI Database Of Systematic Reviews And Implementation Reports. 2015;13(9):40–50. [PubMed: 26470659]

Langley T, Geiger W, Gartlehner G. Aromatherapy for pain relief and psychological problems. Systematic review (Structured abstract). Health Technology Assessment Database. 2016(4).

Posadzki P, Alotaibi A, Ernst E. Adverse effects of aromatherapy: a systematic review of case reports and case series. Int J Risk Saf Med. 2012;24(3):147–161. [PubMed: 22936057]

Su HJ, Chao CJ, Chang HJ, Wu PC. The effects of evaporating essential oils on indoor air quality. Atmos Environ. 2007;41(6):1230–1236.

Cook A, Burkhardt A. Aromatherapy for Self-Care and Wellness. Vol 102004.

Berkman N, Lohr K, Ansari M, et al. Grading the Strength of a Body of Evidence When Assessing Health Care Interventions for the Effective Health Care Program of the Agency for Healthcare Research and Quality: An Update. Rockville, MD: Agency for Healthcare Research and Quality; Methods Guide for Comparative Effectiveness Reviews (AHRQ Publication No. 13(14)-EHC130-EF);2013.