Targeted LC-MS/MS combined with multilocus DNA metabarcoding as a combinatory approach to determine the amount and the source of pyrrolizidine alkaloids contamination in popular cooking herbs, seeds, spices and leafy vegetables., Picron, Jean-François, Philippe Florian, Dubrulle Nelly, Van Hoeck Els, Giraud Nicole, Goscinny Séverine, and Vanhee Celine , Food Addit Contam Part A Chem Anal Control Expo Risk Assess, 2021 Jun, Volume 38, Issue 6, (2021)