Nylander, Elisabet, Ylva Britt Wahlin, and Per-Åke Hofer. 2002. “Methotrexate Supplemented With Steroid Ointments for the Treatment of Severe Erosive Lichen Ruber”. Acta Dermato-Venereologica 82 (1):63-64. https://doi.org/10.1080/000155502753600966.