I. Olsson, E. Asbrink, M. von Stedingk, and L. V. von Stedingk, “Changes in Borrelia burgdorferi-specific serum IgG antibody levels in patients treated for acrodermatitis chronica atrophicans”., Acta Derm Venereol, vol. 74, no. 6, pp. 424–428, Nov. 1994.