TLC Atlas of Chinese crude Drug in Pharmacopoeia of the Peopleʼs Republic of China. TLC Identification of Radix Angelicae dahuricae, Radix Angelicae pubescentis, Radix Angelicae sinensis, Rhizoma Chuanxiong and Rhizoma et Radix Ligustici - Chinese Pharmacopoeia Commission (Peopleʼs Medical Publishing House, 2008)