Pérez Cárdenas, J.E., Isaza Mejía, G., Acosta Agudelo, S.M. and Sepúlveda Arias, J.C. 2009. Preliminary test on the effects on the hematologic parameters of the aqueous and methanolic extracts of Phenax rugosus (poir.) Wedd and Tabebuia chrysantha G. Nicholson. Biosalud. 8, (Dec. 2009), 17–28.