Vasoactive effects of different fractions from two Panamanians plants used in Amerindian traditional medicine

1. Guerrero, E.I.
2. Morán-Pinzón, J.A.
3. Ortíz, L.G.
4. Olmedo, D.
5. del Olmo, E.
6. López-Pérez, J.L.
7. Feliciano, A.S.
8. Gupta, M.P.