TY  - RPRT
TI  - Nail pigmentation resulting from selenium sulfide and copper.
AU  - R Wolf
AU  - C Perluk
AU  - A Krakowski
PY  - 1989
DO  - 10.1111/j.1365-4362.1989.tb04620.x
UR  - https://pubmed.ncbi.nlm.nih.gov/2583901/
ID  - 2583901
ER  -