TY  - RPRT
TI  - [Black stain: a common problem in pediatrics].
AU  - V Paredes Gallardo
AU  - C Paredes Cencillo
PY  - 2005
DO  - 10.1157/13071841
UR  - https://pubmed.ncbi.nlm.nih.gov/15737288/
ID  - 15737288
ER  -