TY  - RPRT
TI  - Becker's nevus.
AU  - A W Kopf
AU  - J Yuppa
PY  - 1968
DO  - 10.1001/archderm.98.1.97
UR  - https://pubmed.ncbi.nlm.nih.gov/5657402/
ID  - 5657402
ER  -