biostudies-literatureUnknown327(7428)BMJ (Clinical research ed.)1409-1409https://www.ebi.ac.uk/biostudies/studies/S-EPMC293040biostudies-literatureGeorge Fraser PurvesPMC293040falseGeorge Fraser Purves2003-01-01T00:00:00Z2003 Dec2025-04-04T11:13:56.2Z2025-04-04T11:13:56.2ZS-EPMC293040