Key points are not available for this paper at this time.
Book review of O uso ritual da ayahuasca. Beatriz Caiuby Labate & Wladimyr Sena Araújo (editors). Campinas (São Paulo, Brazil): Mercado das Letras / FAPESP, 2002. 686 pp. ISBN 85 85725-91-5.
Laura Perez Gil (2003) studied this question.