Figure 1From: Maternal cigarette smoking and its effect on neonatal lymphocyte subpopulations and replication Interleukin-7 (IL-7) concentrations in non-smoking (NSM) and smoking mothers (SM) and newborns. NSM had significantly higher IL-7 concentrations than their newborns (** p < 0.01). Non-parametric Mann–Whitney-U test.Back to article page