八臂聚乙二醇-活性酯（8ARM-PEG-NHS） 是一种由八臂聚乙二醇（8-arm polyethylene glycol, 简称 8ARM-PEG）为骨架，末端接有N-羟基琥珀酰亚胺酯（NHS, N-hydroxysuccinimide ester）官能团的多功能活性材料。NHS 基团是常见的活性酯基团，能够与伯胺（-NH₂）或其它含胺基的分子 ...

Nasdaq provides Price/Earnings Ratio (or PE Ratio) and PEG ratio for stock evaluation. Financial analysts and individual investors use PE Ratio and PEG ratios to determine the financial ...

Nasdaq provides Price/Earnings Ratio (or PE Ratio) and PEG ratio for stock evaluation. Financial analysts and individual investors use PE Ratio and PEG ratios to determine the financial ...

A 53-year-old man with dysphagia underwent uneventful placement of a percutaneous endoscopic gastrostomy (PEG) tube for long-term enteral feeding access. 11 hours after the procedure, it was ...