Tolerability and Cross-reactivity of 3 New Hair Colorants in p-Phenylenediamine–Allergic Individuals. Issue 2 (7th March 2022) - Koch, Lukas; Plaschg, Karin; Fuchs, Anne; Wood, Jonathan; Fautz, Rolf; Kränke, Birger; Aberer, Werner; Blömeke, Brunhilde