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. 2022 Nov 30;10(12):2048. doi: 10.3390/vaccines10122048

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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Skin testing: results for polyethylene glycol. (A) Intradermal testing (IDT) of PEG-2000 with positivity for all concentrations with significant papules and erythema at 20 min. (B) IDT of PEG-2000 with positivity for PEG-2000 1%, 0.1%, and 0.01% at 2 h.