| umbilical cord doppler normal values | 0.17 | 0.2 | 1984 | 36 | 98 |
| umbilical cord doppler range | 1.15 | 0.3 | 3243 | 28 | 31 |
| umbilical artery doppler normal values | 0.54 | 0.9 | 2483 | 38 | 36 |
| umbilical cord doppler ratio | 0.7 | 0.9 | 5759 | 28 | 41 |
| fetal umbilical artery doppler normal values | 0.07 | 0.8 | 9102 | 44 | 59 |
| umbilical artery doppler reference values | 0.19 | 0.7 | 3092 | 41 | 48 |
| normal umbilical doppler s/d ratio | 1.28 | 0.4 | 4654 | 34 | 20 |
| umbilical cord doppler ultrasound | 0.8 | 0.6 | 4420 | 33 | 76 |
| normal umbilical artery doppler | 0.14 | 0.7 | 6662 | 31 | 79 |
| umbilical cord doppler perinatology | 1.96 | 0.5 | 6467 | 35 | 63 |
| umbilical cord doppler protocol | 1.14 | 1 | 7697 | 31 | 4 |
| umbilical artery doppler reference ranges | 0.84 | 0.3 | 7503 | 41 | 85 |
| umbilical cord doppler ultrasound protocol | 0.96 | 0.6 | 777 | 42 | 53 |
| umbilical artery doppler percentile | 0.3 | 0.9 | 1402 | 35 | 9 |
| umbilical cord normal appearance | 0.7 | 0.1 | 4811 | 32 | 48 |
| umbilical doppler s/d ratio | 0.88 | 0.5 | 1574 | 27 | 97 |
| umbilical artery doppler chart | 1.47 | 0.2 | 9290 | 30 | 61 |
| doppler ultrasound normal values | 0.5 | 0.9 | 7169 | 32 | 37 |
| umbilical artery doppler ratio | 1.46 | 0.9 | 6462 | 30 | 93 |
| how to measure umbilical artery doppler | 0.92 | 1 | 9821 | 39 | 78 |
| umbilical artery doppler indices | 0.19 | 0.5 | 9565 | 32 | 38 |
