Determination of fentanyl in human plasma and fentanyl and norfentanyl in human urine using LC–MS/MS
Antibodies Against Fentanyl and Fentanyl Analogs
Fentanyl
Inhaled fentanyl as a method of analgesia
Evaluation of the relationship of xylazine and fentanyl blood concentrations among fentanyl-associated fatalities
Method for the preparation of fentanyl