Title:Development and validation of an analytical method for the simultaneous determination of benzoylecgonine and ecgonine methyl ester in human urine by gas chromatography/mass spectrometry
Title:Preliminary observations on Zelus obscuridorsis (Stål) (Hemiptera: Reduviidae) as predator of the corn leafhopper (Hemiptera: Cicadellidae) in Argentina
Title:Pertussis seroprevalence in adults, post-partum women and umbilical cord blood / Estudio de seroprevalencia de coqueluche en adultos jóvenes, mujeres en puerperio inmediato y sangre del cordón umbilical
Title:Biology of telenomus pachycoris (Hymenoptera: Scelionidae), a parasitoid of eggs of pachycoris torridus (Hemiptera: Scutelleridae): the effects of egg age, exposure time, and temperature
Title:Systena nitentula (Coleoptera: Chrysomelidae), a flea beetle injurious to Alternanthera philoxeroides (Amaranthaceae): Redescription, biology, and distribution