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The superb analysis by Ruth Gilbert and her colleagues on advice on
infant sleeping position which Elizabeth Loder cites was published in the
'International Journal of Epidemiology' (1), not in 'Epidemiology'.
1. Gilbert R, Salanti G, Harden M, See S. Infant sleeping position and
the sudden infant death syndrome: systematic review of observational
studies and historical review of clinicians’ recommendations from 1940-
2000. International Journal of Epidemiology 2005;34:74-87.