TY  - RPRT
TI  - Fluorescence - how long is it useful?
AU  - A S Ullmann
AU  - S A McCutcheon
PY  - 1982
DO  - 10.1093/ajcp/77.2.228
UR  - https://pubmed.ncbi.nlm.nih.gov/7039302/
ID  - 7039302
ER  -