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Case-Control Studies
Cause of Death
1
Dánarmein
1
Extremely Low Birth Weight
1
Female
1
Fyrirburar
1
Humans
1
Iceland
1
Infant
1
Infant Mortality
1
Lífslíkur
Newborn
Nýburar
1
Perinatal Mortality
1
Pregnancy
1
Registries
1
Risk Assessment
1
Risk Factors
Survival Analysis
1
Time Factors
1
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