Alendronate plus alfacalcidol for the treatment of severe bone loss and osteoporotic fractures
Liu Feng, Zhang Jun, Wang Wen-xiu, Zhang Ming-qiang, Zhang Zhi-feng, Hou Hai-tao
Chinese Journal of Tissue Engineering Research . 2012, (39): 7395 -7399 .  DOI: 10.3969/j.issn.2095-4344.2012.39.035