TY  - RPRT
TI  - Urinary unconjugated pteridines: general considerations.
AU  - B Stea
AU  - R A Smith
PY  - 1982
DO  - 10.1007/bf02918548
UR  - https://pubmed.ncbi.nlm.nih.gov/6764849/
ID  - 6764849
ER  -