1. Anatomical description, alkaloid content and quality control of the bark of Pau-pereira (Geissospermum laeve, Apocynaceae)
Journal of Medicinal Plants Research Vol. 6(10), pp. 1866-1872, 16 March, 2012
DOI: 10.5897/JMPR11.1173
Márcia R. Almeida, Alessandra E. S. Silva, Andrezza O. Braga, João Marcelo A. Braga, Neusa Tamaio and Angelo C. Pinto