目的:观察以髓心减压术治疗早期股骨头缺血性坏死的近期和远期疗效.方法:本组38例(41个股骨头)全部采用髓心减压术治疗,一期植骨.平均随访6 a.术后行X线及MRI磁共振检查,并采
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To clone the murine α fetoprotein (AFP) gene, construct the eukaryotic expression vector of AFP and express in CHO cells, total RNA were extracted from Hepa 1
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1.合理选茬马铃薯栽培对土壤要求不严,在各种土壤上均可生长,但疏松的土壤有利薯块膨大,肥沃的土壤有利产量提高。因而种植马铃薯时应选择土层深厚的壤土或沙壤土种植。马铃
2006年2月 国家突发重大动物疫情应急预案rn为了及时、有效地预防、控制和扑灭突发重大动物疫情,最大程度地减轻突发重大动物疫情对畜牧业及公众健康造成的危害,保持经济持续