Opinion by Prof. Trish Greenhalgh: We Can’t be 100% Sure Face Masks Work – But that Shouldn’t Stop us Wearing Them
8 Jun, 2020 | 04:45h | UTCWe can’t be 100% sure face masks work – but that shouldn’t stop us wearing them – The Guardian
We can’t be 100% sure face masks work – but that shouldn’t stop us wearing them – The Guardian