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Methamphetamine and ketamine use in major Chinese cities, a nationwide reconnaissance through sewage-based epidemiology

Substance AbuseSewage-based EpidemiologyAddictionMedicineEnvironmental HealthForensic ToxicologyClub DrugExposure AssessmentHuman ExposureDrug TestToxicologyPublic HealthMajor Chinese CitiesEpidemiologyNationwide Reconnaissance