TY  - JOUR 
T1  - GC–MS and LC–MS/MS workflows for the identification and quantitation of pyrrolizidine alkaloids in plant extracts, a case study: <i>Echium plantagineum</i>
JO  - Revista Brasileira de Farmacognosia
A1  - Sixto, Alexandra
A1  - Pérez-Parada, Andrés
A1  - Niell, Silvina
A1  - Heinzen, Horacio
SN  - 0102-695X
UL  - 10.1016/j.bjp.2019.04.010
VL  - 29 
Y1  - 2019
PB  - Brazil 
ER  -