Screening of Amazonian plants as antimicrobial agents. Apocynaceae - Suffredini, I B; Kaneko, Telma Mary; Ohara, Mitsuko Taba; Bacchi, Elfriede Marianne; Younes, Riad Naim; Varella, Antonio Drauzio (Annual Meeting of the American Society of Pharmacognosy, 2000)