TY  - RPRT
TI  - A staging system for malignant melanoma.
AU  - A S Ketcham
AU  - W O Christopherson
PY  - 1979
DO  - 10.1007/bf01556573
UR  - https://pubmed.ncbi.nlm.nih.gov/473780/
ID  - 473780
ER  -