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

Gruenwald J, Brendler T, Jaenicke C. PDR for Herbal Medicines. 1st ed. Montvale, NJ: Medical Economics Company, Inc., 1998.

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

Covington TR, et al. Handbook of Nonprescription Drugs. 11th ed. Washington, DC: American Pharmaceutical Association, 1996.

Foster S, Tyler VE. Tyler's Honest Herbal, 4th ed., Binghamton, NY: Haworth Herbal Press, 1999.

Pye KG, Kelsey SM, House IM, et al. Severe dyserythropoeisis and autoimmune thrombocytopenia associated with ingestion of kelp supplement. Lancet 1992;339:1540. View abstract.

Fetrow CW, Avila JR. Professional's Handbook of Complementary & Alternative Medicines. 1st ed. Springhouse, PA: Springhouse Corp., 1999.

Kazzi GM, Bottoms SF, Rosen MG. Efficacy and safety of Laminaria digitata for preinduction ripening of the cervix. Obstet Gynecol 1982;60:440-3.. View abstract.

Kathan RH. Kelp extracts as antiviral subatances. Ann N Y Acad Sci 1965;130:390-7.

Eliason BC. Transient hyperthyroidism in a patient taking dietary supplements containing kelp. J Am Board Fam Pract 1998;11:478-80.

Norman JA, Pickford CJ, Sanders TW, Waller M. Human intake of arsenic and iodine from seaweed-based food supplements and health foods available in the UK. Food Addit Contam 1988;5:103-9.. View abstract.

US Department of Health and Human Services, Public Health Service. Agency for Toxic Substances and Disease Registry. Toxicological profile for strontium. April 2004. Available at: www.atsdr.cdc.gov/toxprofiles/tp159.pdf. (Accessed 8 August 2006).

Amster E, Tiwary A, Schenker MB. Case report: potential arsenic toxicosis secondary to herbal kelp supplement. Environ Health Perspect 2007;115:606-8. View abstract.

You JS, Sung MJ, Chang KJ. Evaluation of 8-week body weight control program including sea tangle (Laminaria japonica) supplementation in Korean female college students. Nutr Res Pract. 2009 Winter;3(4):307-14. doi: 10.4162/nrp.2009.3.4.307. Epub 2009 Dec 31. View abstract.

Atlas RO, Lemus J, Reed J 3rd, Atkins D, Alger LS. Second trimester abortion using prostaglandin E2 suppositories with or without intracervical Laminaria japonica: a randomized study. Obstet Gynecol. 1998 Sep;92(3):398-402 View abstract.

Miyai K, Tokushige T, Kondo M; Iodine Research Group. Suppression of thyroid function during ingestion of seaweed "Kombu" (Laminaria japonoca) in normal Japanese adults. Endocr J. 2008 Dec;55(6):1103-8. Epub 2008 Aug 9. View abstract.

Ko SJ, Kim J, Han G, et al. Laminaria japonica combined with probiotics improves intestinal microbiota: a randomized clinical trial. J Med Food. 2014 Jan;17(1):76-82. doi: 10.1089/jmf.2013.3054. View abstract.

Electronic Code of Federal Regulations. Title 21. Part 182 -- Substances Generally Recognized As Safe. Available at: https://www.ecfr.gov/cgi-bin/text-idx?SID=3ee286332416f26a91d9e6d786a604ab&mc=true&tpl=/ecfrbrowse/Title21/21tab_02.tpl

Jain JK, Mishell DR Jr. A comparison of misoprostol with and without laminaria tents for induction of second-trimester abortion. Am J Obstet Gynecol. 1996;175(1):173-7. View abstract.

Turnquest MA, Lemke MD, Brown HL. Cervical ripening: randomized comparison of intravaginal prostaglandin E2 gel with prostaglandin E2 gel plus laminaria tents. J Matern Fetal Med. 1997;6(5):260-3. View abstract.

Tabasi Z, Mesdaghinia E, Abedzadeh-Kalahroudi M, Sehat M, Panahandeh A. Comparing the effects of vaginal misoprostol, laminaria, and extra amniotic saline infusion on cervical ripening and induction of labor. Obstet Gynecol Sci. 2020;63(3):261-269. View abstract.

McQuade M, Barbour K, Betstadt S, Harrington A. Intubation and intensive care after laminaria anaphylaxis in second-trimester abortion. Am J Emerg Med. 2020;38(1):163.e1-163.e2. View abstract.

Liu SM, Flink-Bochacki R. A single-blinded randomized controlled trial evaluating pain and opioid use after dilator placement for second-trimester abortion. Contraception 2021;103(3):171-177. View abstract.

Achenbach AE, Singh S, Jackson B, Caveglia SJ, Berghella V, Seligman NS. Cervical ripening with laminaria tents prior to second trimester induction of labor. J Matern Fetal Neonatal Med 2021;1-6. View abstract.

Zaharudin N, Tullin M, Pekmez CT, Sloth JJ, Rasmussen RR, Dragsted LO. Effects of brown seaweeds on postprandial glucose, insulin and appetite in humans - A randomized, 3-way, blinded, cross-over meal study. Clin Nutr 2021;40(3):830-838. View abstract.

Aoe S, Yamanaka C, Ohtoshi H, Nakamura F, Fujiwara S. Effects of daily kelp (Laminaria japonica) intake on body composition, serum lipid levels, and thyroid hormone levels in healthy Japanese adults: a randomized, double-blind study. Mar Drugs 2021;19(7):352. View abstract.

Zhang X, You Y, Wang L, et al. Anti-obesity effects of Laminaria japonica fucoidan in high-fat diet-fed mice vary with the gut microbiota structure. Food Funct 2022;13(11):6259-70. View abstract.

Zhang X, Su C, Cao C, et al. Gut microbiota of individuals could be balanced by a 14-day supplementation with Laminaria japonica and differed in metabolizing alginate and galactofucan. Front Nutr 2022;9:881464. View abstract.

Goldberg AB, Drey EA, Whitaker AK, Kang MS, Meckstroth KR, Darney PD. Misoprostol compared with laminaria before early second-trimester surgical abortion: a randomized trial. Obstet Gynecol 2005;106(2):234-41. View abstract.

Borgatta L, Chen AY, Vragovic O, Stubblefield PG, Magloire CA. A randomized clinical trial of the addition of laminaria to misoprostol and hypertonic saline for second-trimester induction abortion. Contraception 2005;72(5):358-61. View abstract.

Prairie BA, Lauria MR, Kapp N, Mackenzie T, Baker ER, George KE. Mifepristone versus laminaria: a randomized controlled trial of cervical ripening in midtrimester termination. Contraception 2007;76(5):383-8. View abstract.