Fig. 4From: Human placental proteomics and exon variant studies link AAT/SERPINA1 with spontaneous preterm birthProteomic differences between spontaneous (S) and elective (E) preterm birth in chorionic (Ch) and basal (Ba) plates of the placenta. Exact positions of spots are presented in Additional file: Fig S1. Corresponding changes in protein levels are shown in the expression profile, and statistically significant changes (p < 0.05) are indicated by horizontal brackets. Spots corresponding to the same protein are clustered with a vertical line, and protein fragments are indicated with asterisksBack to article page