Aloysia polystachya (Griseb.) Moldenke (Verbenaceae) powdered leaves are effective in treating anxiety symptoms: a phase-2, randomized, placebo-controlled clinical trial - Carmona, Fabio; Coneglian, Fernando Saraiva; Batista, Priscila Alves; Aragon, Davi Casale; Angelucci, Mateus Andrea; Martinez, Edson Zangiacomi; Pereira, Ana Maria Soares (Journal of Ethnopharmacology, 2019)