@misc{indiciae12d20866d80f, title = {Fentanyl RIA improved by a single-step extraction.}, author = {G Campistron and M Giroux and J C Dumas and M Hoff and R Desprats and H Grandjean and G Pontonnier and G Houin}, year = {1988}, url = {https://pubmed.ncbi.nlm.nih.gov/3168243/}, note = {Source identifier: 3168243} }