Ferencz Elek and Kúsz Norbert and Hohmann Judit and Vollár Martin and Molnár Ágnes and Laczkó-Zöld Eszter and Zomborszki Zoltán Péter and Csupor-Löffler Boglárka: Chemical characterization of common ragweed (Ambrosia artemisiifolia L.) root.