The Existence of Aldose Reductase Inhibitors in Some Kampo Medicines (Oriental Herb Prescriptions) - Aida, Kaoru; Tawata, Masato; Shindo, Hideo; Onaya, Toshimasa; Sasaki, Hiroshi; Nishimura, Hiroaki; Chin, Masao; Mitsuhashi, Hiroshi (Planta Medica, 1989)