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Posts by Greg‭

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Q&A How does zinc oxide work?

Zinc oxide has a very slight antimicrobial effect, whilst having little to no impact on human cells. This is more that the material is toxic to microbes than activating a body defence. It's the Zn...

posted 5y ago by Greg‭

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Q&A Is there really no way to rescue a climber from the death zone?

Assuming weather conditions were perfect, and the condition you were treating was mostly oedema, then a hot air balloon with a hyperbaric chamber may be possible. However, conditions are rarely ...

posted 5y ago by Greg‭

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