Br J Dermatol. 2003 Apr; 148(4): 822.

Activation of mast cells by silver particles in a patient with localized argyria due to implantation of acupuncture needles.

Kakurai M, Demitsu T, Umemoto N, Ohtsuki M, Nakagawa H.

Department of Dermatology, Jichi Medical School, Tochigi, Japan.