A Chinese herbal decoction prepared from Radix Astragali and Radix Angelicae Sinensis induces the expression of erythropoietin in cultured Hep3B cells - Gao, Q T; Cheung, J KH; Choi, R CY; Cheung, A WH; Lv, J; Jiang, Z Y; Duan, R; Zhao, K J; Ding, A W; Dong, T TX; Tsim, K WK (Planta Med, 2008)