Pilot study of the pharmacokinetics of betel nut and betel quid biomarkers in saliva, urine, and hair of betel consumers.
Franke AA, Li X, Lai JF. Pilot study of the pharmacokinetics of betel nut and betel quid biomarkers in saliva, urine, and hair of betel consumers. Drug Test Anal. 2016 Oct; 8(10):1095-1099.