Acute Toxicity Analyses of Stellera chamaejasme Root in Mongolian Gerbils(Meriones unguiculatus) Anti-fertility effect of EP-1 contraceptive compound on male Mongolia gerbils Meriones unguiculatus Protective effect of Luotai Injection on ISO-induced experimental myocardial ischemia of gerbil model and its comparison with of rat model Effect of different densities of Mongolian gerbils to spring wheat growth under simulation conditions