Frithz, A., and B. Lagerholm. “Acrodermatitis Chronica Atrophicans, Erythema Chronicum Migrans and Lymphadenosis Benigna Cutis--Spirochetal Diseases?”. Acta Dermato-Venereologica, vol. 63, no. 5, Sept. 1983, pp. 432-6, doi:10.2340/0001555563432436.