| AC | abdominal circumference |
| HC | head circumference |
| IUGR | intrauterine growth restriction |
| NIPT | noninvasive prenatal testing |
| NST | non-stress test |
| PWS | Prader–Willi syndrome |
| rhGH | recombinant human growth hormone |
| SGA | small for gestational age |
| UPD | uniparental disomy |
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