Circadian rhythm of anti-fungal prenylated chromene in leaves of Piper aduncum - Morandim, Andreia de Araújo; Bergamo, Debora Cristina Baldoqui; Kato, Massuo Jorge; Cavalheiro, Alberto José; Bolzani, Vanderlan da Silva; Furlan, Maysa (Phytochemical Analysis, 2005)