夏天到了，不少人会用蚊香、电热蚊香液驱蚊。可您知道吗？这些驱蚊产品安不安全，其实是有国家标准严格把关的！GB/T 13917.4-2009、GB/T 13917.5-2009、GB/T 13917.6
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医学界一直致力于对人类大脑的深入研究,以期更好地理解其结构和功能,开创疾病预防和治疗新策略。类器官技术的出现为这一领域带来了前所未有的新突破。近日,科学家们发现了在全人源细胞培养系统中可以开发功能性小
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