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Citation: Dj. Kroll et al., Variability in St. John's wort formulations is an important consideration, ALTERN TH H, 7(6), 2001, pp. 21-22

Authors: Oberlies, NH Burgess, JP Navarro, HA Pinos, RE Soejarto, DD Farnsworth, NR Kinghorn, AD Wani, MC Wall, ME

Citation: Nh. Oberlies et al., Bioactive constituents of the roots of Licania intrapetiolaris, J NAT PROD, 64(4), 2001, pp. 497-501

Authors: Kim, NC Oberlies, NH Brine, DR Handy, RW Wani, MC Wall, ME

Citation: Nc. Kim et al., Isolation of symlandine from the roots of common comfrey (Symphytum officinale) using countercurrent chromatography, J NAT PROD, 64(2), 2001, pp. 251-253

Authors: Johnson, HA Oberlies, NH Alali, FQ McLaughlin, JL

Citation: Ha. Johnson et al., Thwarting resistance: Annonaceous acetogenins as new pesticidal and antitumor agents, BIOLOGICALLY ACTIVE NATURAL PRODUCTS: PHARMACEUTICALS, 2000, pp. 173-183