A first step in the quest for the active constituents in Filipendula ulmaria (Meadowsweet): comprehensive phytochemical identification by liquid chromatography coupled to quadrupole-orbitrap mass spectrometry - Bijttebier, S; Van der Auwera, A; Voorspoels, S; Noten, B; Hermans, N; Pieters, L; Apers, S (Planta Med, 2016)