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P S Blair
Dr P S Blair, St Michael's Hospital, Bristol, UK; email@example.com
What is the prevalence of head covering and associated risk of sudden infant death syndrome (SIDS)?
Included studies reported prevalence of head covering in SIDS infants and control infants waking from a reference sleep. Studies that did not separate head covering from other facial occlusion or that only reported results for SIDS infants were excluded. Outcome was prevalence of head covering.
Medline, customised databases, and reference lists were searched for age-matched case-controlled studies from 1950 to May 2007. 10 studies …