Livden J K, Naevdal A, Milde E J
Scand J Rheumatol. 1981;10(2):95-6. doi: 10.3109/03009748109095280.
The development of pemphigus foliaceus in three patients and pemphigus erythematosus in one patient with rheumatoid arthritis treated with penicillamine is described.