@rpelc @sameo416 @CollignonPeter It's not only harms, it is that mechanisms of biology are enormously complex and only partially understood. Filtration, as with other mechanical devices, is well understood. We don't design airplanes with RCTs.
@rpelc @sameo416 @CollignonPeter 这不仅有害，而且生物学机制非常复杂，而且只能部分理解。与其他机械设备一样，过滤是众所周知的。我们不设计带有 RCT 的飞机。