Quality Assessment of Polygonum cuspidatum and Polygonum multiflorum by 1H NMR Metabolite Fingerprinting and Profiling Analysis - Frédérich, Michel; Wauters, Jean-Noël; Tits, Monique; Jason, Charlotte; de Tullio, Pascal; Van der Heyden, Yvan; Fan, Guorong; Angenot, Luc (Planta Medica, 2011)