Fetal cardiovascular responses to maternal insulin infusion: dietary group comparison Values are means ±s.e.m. C1, n= 10; PI50, n= 9; C2, n= 10; PI40, n= 9; L, n= 6. HR, heart rate; FVR, femoral vascular resistance; AOC, area over curve; AUC, area under curve; TTM, time to maximum response. *P < 0.05.