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To apply laparoscopic SN mapping to early-stage gastric cancer patients, the shine-through effect must be eliminated because radiotracers are essential for this method.
在对早期胃癌患者进行腹腔镜前哨淋巴结定位时，必须消除穿透性的影响，因为放射示踪剂在这项技术中至关重要。
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The company also collaborated with other researchers to develop processes to automate the synthesis of radiotracers.
ECONOMIST: Case history: The power of positrons | The
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