More research is needed into whether there may be a link between weight-loss injections and an increase in gallbladder removals, specialist doctors have said.
A microfluidics chip enables researchers to manipulate and study individual cells, without the use of agar at all. Credit: Brouzes E. et al. PNAS (2009).
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但这些顾虑最终没有改变任何事情。
Weathering challenges