TY  - RPRT
TI  - Threshold level for theophylline in doping analysis.
AU  - F T Delbeke
AU  - P De Backer
PY  - 1996
DO  - 10.1016/s0378-4347(96)00275-7
UR  - https://pubmed.ncbi.nlm.nih.gov/9001970/
ID  - 9001970
ER  -