Figure 3From: Sudden infant death syndrome: a re-examination of temporal trends Changes in the gestational age distribution of twin live births (Figure 3 a), in gestational age-specific rates of SIDS (traditional model, moving average, Figure 3 b,) and in gestational age-specific rates of SIDS (fetuses-at-risk model, Figure 3 c) among twins between 28 and 40 weeks gestation, United States, 1995–96 and 2004–05. Back to article page