Andersen, KE, A Boman, A Vølund, and JE. Wahlberg. 1985. “Induction of Formaldehyde Contact Sensitivity: Dose Response Relationship in the Guinea Pig Maximization Test”. Acta Dermato-Venereologica 65 (6):472-78. https://doi.org/10.2340/0001555565472478.