Fig. 1: Comparison of concentrations of fetal soluble leptin receptor and fetal total leptin between twins with evidence of in intrauterine growth retardation (IUGR)—one small for gestational age (SGA) and the other appropriate for gestational age (AGAI) from a dichorionic pregnancy.

Data were tested with the Mann–Whitney U-test; a p-value of < 0.05 indicates significant results; ns-not significant.