Rudzki E, Grzywa Z
Dermatologica. 1977;155(2):115-21. doi: 10.1159/000250964.
The standard series and 35 essential oils were tested on 450 patients with dermatitis. It was found that those simultaneously sensitive to essential oils are more frequently negative than positive to balsam of Peru. The remaining 3 balsams, however (colophony, turpentine and wood tars), are also screening agents for essential oils. All four balsams reveal sensitivity to essential oils in most of the subjects tested. In patients negative to all 4 balsams of the standard series, attempts to find an essential oil with which tests would be simultaneously frequently positive with those for other essential oils failed.
对450名皮炎患者进行了标准系列和35种精油测试。结果发现，对精油同时敏感的患者对秘鲁香脂呈阴性的情况比呈阳性的情况更常见。然而，其余3种香脂（松香、松节油和木焦油）也是精油的筛选剂。在大多数受试对象中，所有这四种香脂都显示出对精油敏感。在对标准系列的所有4种香脂均呈阴性的患者中，试图找到一种与其他精油测试结果同时经常呈阳性的精油的尝试失败了。
