Aloysia polystachya (Griseb.) Moldenke (Verbenaceae) powdered leaves are effective in treating anxiety symptoms: a phase-2, randomized, placebo-controlled clinical trial - Carmona, F; Coneglian, F S; Batista, P A; Aragon, D C; Angelucci, M A; Martinez, E Z; Pereira, A MS (J Ethnopharmacol, 2019)