Acute Biphasic Effects of Ayahuasca. oleh Eduardo Ekman Schenberg, João Felipe Morel Alexandre, Renato Filev, Andre Mascioli Cravo, João Ricardo Sato, Suresh D Muthukumaraswamy, Maurício Yonamine, Marian Waguespack, Izabela Lomnicka, Steven A Barker, Dartiu Xavier da Silveira