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Abraham et al., Toxicology and Risk Assessment of Coumarin: Focus on Human Data. PubMed 20024932 (Mol Nutr Food Res 2010). The Relation between Hepatotoxicity and Total Coumarin Intake from Traditional Japanese Medicines Containing Cinnamon Bark. PMC4913087. Danish Market Coumarin Survey. ScienceDirect S0956713513005379. BMD-Risikobewertung Norwegen zu Cumarin. ScienceDirect S0278691511006703. Chinesisches Arzneibuch (via PMC6804248); Me&Qi TCM-Herbdatenbank; Asante Academy "Rou Gui (Cortex Cinnamomi)". Empirical Point Acupuncture, "Use of Chinese Cinnamon; Gui Zhi und Rou Gui in Herbal Medicine". Tisserand und Young, Essential Oil Safety, 2. Auflage (via Tisserand Institute und AromaWeb). EU-Kosmetikverordnung, Duftstoffallergene (via Biorius "A new piece of legislation on fragrance allergens" und cosmeticscare.eu "From 26 to 82"). IFRA-Standards (via theperfumery.com und scentspiracy.com; Primaerquelle ifrafragrance.org/ifra-standards ist im Detail zu verifizieren).