TY  - RPRT
TI  - Persistent occupational koilonychia.
AU  - N B Pedersen
PY  - 1982
DO  - 10.1111/j.1600-0536.1982.tb04159.x
UR  - https://pubmed.ncbi.nlm.nih.gov/7067448/
ID  - 7067448
ER  -