Preparation and Drug Release Properties of Nanostructured CaCO3 Porous Hollow Microspheres
LI Liang,ZHU Ying-Jie,CAO Shao-Wen,MA Ming-Yan
Journal of Inorganic Materials . 2009, (1): 166 -170 .  DOI: 10.3724/SP.J.1077.2009.00166