biostudies-literatureUnknown327(7420)Smith RBMJ (Clinical research ed.)883-4https://www.ebi.ac.uk/biostudies/studies/S-EPMC218804biostudies-literatureWhen to retract?PMC218804Smith RfalseWhen to retract?2003-01-01T00:00:00Z2003 Oct2025-04-22T08:28:38.855Z2025-04-05T22:33:33.604ZS-EPMC2188041456372110.1136/bmj.327.7420.883