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AIM: To determine the possible routes of intrafamilial transmission pattern in pediatric cases of chronic hepatitis B vi......
由于超薄印制电路板的急剧要求和目前PCB制造商已生产的PCMCIA卡都遇到了一系列问题。概括起来就是要生产具有减小产品尺寸和对位......
Testing the possibility of horizontal transfer of introduced neomycin phosphotransferase (nptⅡ) gene
The possible horizontal transfer of transgenes is of great concern when the transgenic plants are released into the fiel......