Inhibition of VHR Dual-Specificity Protein Tyrosine Phosphatase Activity by Flavonoids Isolated from Scutellaria baicalensis: Structure-Activity Relationships - Lee, Myung Sun; Oh, Won Keun; Kim, Bo Yeon; Ahn, Soon Cheol; Kang, Dae Ook; Sohn, Cheon Bae; Osada, Hiroyuki; Ahn, Jong Seog (Planta Medica, 2002)