1. Assessing tobacco use in an African population: Serum and urine cotinine cut-offs from South Africa. (1st February 2019) Authors: Ware, Lisa J.; Charlton, Karen; Kruger, Ruan; Breet, Yolandi; van Rooyen, Johannes; Huisman, Hugo; Botha, Shani; Uys, Aletta S.; Rennie, Kirsten L.; Naidoo, Nirmala; Kowal, Paul; Schutte, Aletta E. Journal: Drug and alcohol dependence Issue: Volume 195(2019) Page Start: 82 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗