TY  - RPRT
TI  - Usnic acid.
AU  - K Ingólfsdóttir
PY  - 2002
DO  - 10.1016/s0031-9422(02)00383-7
UR  - https://pubmed.ncbi.nlm.nih.gov/12453567/
ID  - 12453567
ER  -