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2. Koshak A, Wei L, Koshak E, et al. Nigella sativa supplementation improves asthma control and biomarkers: a randomized, double-blind, placebocontrolled trial. Phytother Res. 2017;31(3):403-9. 

3. Salem AM, Bamosa AO, Qutub HO, et al. Effect of Nigella sativa supplementation on lung function and inflammatory mediators in partly controlled asthma: a randomized controlled trial. Ann Saudi Med. 2017;37:64-71. 

4. Gholamnezhad Z, Keyhanmanesh R, Boskabady MM. Anti-inflammatory, antioxidant, and immunomodulatory aspects of Nigella sativa for its preventive and bronchodilatory effects on obstructive respiratory diseases: A review of basic and clinical evidence. J Func Foods. 2015;17:910-927. 

5. Tuna HI, Babadag B, Ozkaraman A, Alparslan G. Investigation of the effect of black cumin oil on pain in osteoarthritis geriatric individuals. Complement Ther Clin Pract. 2018;31:290-4. 

6. Kooshki A, Forouzan R, Rakhshani MH, Mohammadi M. Effect of topical application of Nigella sativa oil and oral acetaminophen on pain in elderly with knee osteoarthritis: a crossover clinical trial. Electron Physician. 2016;8(11):3193-97 

7. Gheita TA, Kenawy SA. Effectiveness of Nigella sativa oil in the management of rheumatoid arthritis patients: a placebo controlled study. Phytother Res. 2012;26:1246-8. 

8. Huseini HF, Kianbakht S, Mirshamsi MH, Zarch AB. Effectiveness of topical Nigella sativa seed oil in the treatment of cyclic mastalgia: A randomized, triple-blind, active, and placebo-controlled clinical trial. Planta Med. 2016;82:285-8. 

9. Darand M, Darabi Z, Yari Z, Hedayati M, et al. The effects of black seed supplementation on cardiovascular risk factors in patients with nonalcoholic fatty liver disease: A randomized, double-blind, placebo-controlled clinical trial. Phytother Res. 2019;33(9):2369-77. 

10. Kaatabi H, Bamosa AO, Badar A, et al. Nigella sativa improves glycemic control and ameliorates oxidative stress in patients with type 2 diabetes mellitus: placebo controlled participant blinded clinical trial. PLoS One. 2015;10(2):e0113486. 

11. Badar A, Kaatabi H, Bamosa A, et al. Effect of Nigella sativa supplementation over a one-year period on lipid levels, blood pressure and heart rate in type-2 diabetic patients receiving oral hypoglycemic agents: nonrandomized clinical trial. Ann Saudi Med. 2017;37(1):56-63.