Corazza, Monica, Federica Baldo, Antonella Pagnoni, Roberta Miscioscia, and Annarosa Virgili. “Measurement of Nickel, Cobalt and Chromium in Toy Make-up by Atomic Absorption Spectroscopy”. Acta Dermato-Venereologica 89, no. 2 (February 3, 2009): 130–133. Accessed February 23, 2025. https://medicaljournalssweden.se/actadv/article/view/9342.