Death, SuddenSudden Infant DeathDeath, Sudden, CardiacEpilepsyForensic PathologyCoroners and Medical ExaminersAutopsyOregonProne PositionPathology, MolecularCause of DeathEpilepsy, Tonic-ClonicMyocarditisSeizuresArrhythmias, CardiacRisk FactorsInfant, NewbornElectroencephalographySleepBronchopneumoniaElectrocardiographyIncidenceCell DeathRetrospective StudiesCyanosisCase-Control StudiesHeart ArrestDeathAnticonvulsantsEnglandTime FactorsProspective StudiesAge Factors