DOI:
10.1055/s-00000137
Krankenhaushygiene up2date
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References
Islam N, Sharp SJ, Chowell G. et al.
Physical distancing interventions and incidence of coronavirus disease 2019: natural experiment in 149 countries.
BMJ 2020;
370: m2743
DOI: 10.1136/bmj.m2743.
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