Hjorth N, Wilkinson D, Magnusson B, Bandmann H J, Maibach H
Contact Dermatitis. 1978 Feb;4(1):46-8. doi: 10.1111/j.1600-0536.1978.tb03720.x.
Benzocaine-reactive patients were patch tested to two commercial sources of glyceryl p-aminobenzoate containing varying concentrations of benzocaine as a contaminant. Eleven of 20 reacted to the source with approximately 0.3% benzocaine; none reacted to the source with approximately 0.001% benzocaine.
对苯佐卡因过敏的患者进行了斑贴试验，使用了两种商业来源的对氨基苯甲酸甘油酯，它们含有不同浓度作为污染物的苯佐卡因。20名患者中有11名对含约0.3%苯佐卡因的来源有反应；对含约0.001%苯佐卡因的来源无人有反应。
