Phylogenetic Analysis of the DNA Sequence of the Non-Coding Region of Nuclear Ribosomal DNA and Chloroplast of Ephedra Plants in China - Long, Changfeng; Kakiuchi, Nobuko; Takahashi, Akira; Komatsu, Katsuko; Cai, Shaoqing; Mikage, Masayuki (Planta Medica, 2004)