TY  - RPRT
TI  - Unexpected testosterone result for external quality assessment scheme sample.
AU  - Albert Wolthuis
AU  - Jan de Vreeze
PY  - 2005
DO  - 10.1373/clinchem.2004.044842
UR  - https://pubmed.ncbi.nlm.nih.gov/15681568/
ID  - 15681568
ER  -