1. Dental calculus as a source of ancient alkaloids: Detection of nicotine by LC-MS in calculus samples from the Americas. (April 2018) Authors: Eerkens, Jelmer W.; Tushingham, Shannon; Brownstein, Korey J.; Garibay, Ramona; Perez, Katherine; Murga, Engel; Kaijankoski, Phil; Rosenthal, Jeffrey S.; Gang, David R. Journal: Journal of archaeological science Issue: Volume 18(2018) Page Start: 509 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗