New Zealand Cot Death study and missing data.
Stewart
A W
AW
Mitchell
E A
EA
D015982:Bias; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D015999:Multivariate Analysis; D009520:New Zealand / Q000453:epidemiology; D012307:Risk Factors; D013398:Sudden Infant Death / Q000453:epidemiology* / Q000209:etiology