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. Author manuscript; available in PMC: 2019 Aug 22.
Published in final edited form as: J Allergy Clin Immunol Pract. 2018 Dec 14;7(5):1533–1540.e8. doi: 10.1016/j.jaip.2018.12.003

Figure 1:

Figure 1:

Chemical structure of polyethylene glycols and polysorbates. Polysorbate 20 shown. Note the repeating polyether domains contained in both molecules, highlighted in gray. Source of chemical structure images: sigmaaldrich.com, accessed 5-15-2018. Highlights and labels added by authors to demonstrate similarity.