| Hans-Günter Meyer-Thompson | Drug checking
Using Urine Drug Testing to Track Xylazine-Fentanyl Copositivity in a Changing Drug Supply.
Using Urine Drug Testing to Track Xylazine-Fentanyl Copositivity in a Changing Drug Supply.
Childerhose JE.
JAMA Netw Open. 2026;9(7):e2622481. doi:10.1001/jamanetworkopen.2026.22481
https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2851456