Blumenthal M, ed. The Complete German Commission E Monographs: Therapeutic Guide to Herbal Medicines. Trans. S. Klein. Boston, MA: American Botanical Council, 1998.

Newall CA, Anderson LA, Philpson JD. Herbal Medicine: A Guide for Healthcare Professionals. London, UK: The Pharmaceutical Press, 1996.

The Review of Natural Products by Facts and Comparisons. St. Louis, MO: Wolters Kluwer Co., 1999.

Schulz V, Hansel R, Tyler VE. Rational Phytotherapy: A Physician's Guide to Herbal Medicine. Terry C. Telger, transl. 3rd ed. Berlin, GER: Springer, 1998.

Ellenhorn MJ, et al. Ellenhorn's Medical Toxicology: Diagnoses and Treatment of Human Poisoning. 2nd ed. Baltimore, MD: Williams & Wilkins, 1997.

Brinker F. Herb Contraindications and Drug Interactions. 2nd ed. Sandy, OR: Eclectic Medical Publications, 1998.

Robbers JE, Tyler VE. Tyler's Herbs of Choice: The Therapeutic Use of Phytomedicinals. New York, NY: The Haworth Herbal Press, 1999.

Tuncok Y, Kozan O, Cavdar C, et al. Urginea maritima (squill) toxicity. J Toxicol Clin Toxicol 1995;33:83-6. View abstract.

United States Pharmacopeial Convention I, editor. Drug Information for the Health Care Professional. 19th ed. Micromedex, 1999.

Stauch, M., Grewe, N., and Belz, G. G. [Effect of proscillaridin-4'-methylether on pressure rise velocity in the left ventricle of patients with coronary heart disease (author's transl)]. Klin.Wochenschr. 7-15-1977;55(14):705-706. View abstract.

Dallari, A. and Barbaresi, F. [Clinical experimentation with a cardiokinetic extracted from squill: 3-beta-ramnoside-14-beta-hydroxy-delta-4,20,22-bufatrienolide (proscillaridine A)]. Clin Ter. 10-31-1965;35(2):126-141. View abstract.

Nejatbakhsh F, Karegar-Borzi H, Amin G, et al. Squill Oxymel, a traditional formulation from Drimia Maritima (L.) Stearn, as an add-on treatment in patients with moderate to severe persistent asthma: A pilot, triple-blind, randomized clinical trial. J Ethnopharmacol. 2017;196:186-192. View abstract.

Moosavi ZB, Aliabdi M, Golfakhrabadi F, Namjoyan F. The comparison of therapeutic effect of Clobetasol propionate lotion and squill extract in alopecia areata: a randomized, double-blind clinical trial. Arch Dermatol Res. 2020 Apr;312(3):173-178. View abstract.

Akhtar G, Shabbir A. Urginea indica attenuated rheumatoid arthritis and inflammatory paw edema in diverse animal models of acute and chronic inflammation. J Ethnopharmacol. 2019 Jun 28;238:111864. View abstract.