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Immortal time bias: a possible explanation for “Impact of acyclovir use on survival of patients with ventilator-associated pneumonia and high load herpes simplex virus replication”

Crossref DOI link: https://doi.org/10.1186/s13054-020-03073-4

Published Online: 2020-06-17

Published Print: 2020-12

Update policy: https://doi.org/10.1007/springer_crossmark_policy

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