Adenosine A1 Receptor Binding Activity of Methoxy Flavonoids from Orthosiphon stamineus - Yuliana, Nancy Dewi; Khatib, Alfi; Link-Struensee, Anne Maria Regina; Ijzerman, Adriaan P.; Rungkat-Zakaria, Fransiska; Choi, Young Hae; Verpoorte, Robert (Planta Medica, 2009)