Authors: van Weeren, PR Morales, JA Rodriguez, LL Cedeno, H Villalobos, J Poveda, LJ

Citation: Pr. Van Weeren et al., Mortality supposedly due to intoxication by pyrrolizidine alkaloids from Heliotropium indicum in a horse population in Costa Rica: A case report, VET Q, 21(2), 1999, pp. 59-62

Authors: Badilla, B Mora, G Poveda, LJ

Citation: B. Badilla et al., Anti-inflammatory activity of aqueous extracts of five Costa Rican medicinal plants in Sprague-Dawley rats, REV BIOL TR, 47(4), 1999, pp. 723-727

Authors: Ciccio, JF Soto, VH Poveda, LJ

Citation: Jf. Ciccio et al., Essential oil of Lepechinia schiedeana (Lamiaceae) from Costa Rica, REV BIOL TR, 47(3), 1999, pp. 373-375

Authors: Ciccio, JE Poveda, LJ

Citation: Je. Ciccio et Lj. Poveda, Volatile constituents of Cunila polyantha (Lamiaceae) from Costa Rica. A rich source of menthone, REV BIOL TR, 47(3), 1999, pp. 377-379