From: Failure to diagnose hypochondroplasia by prenatal diagnosis: a case report
the moon's age | Birth | 1 | 3 | 6 | 9 | 12 |
---|---|---|---|---|---|---|
crown-rump length(cm) | 33 | 34.2 | 36.4 | 41.2 | 43.4 | 45.6 |
height(cm) | 48 | 49.1 | 52.7 | 59.5 | 62.8 | 65.5 |
The ratio of crown-rump length and height | 0.688 | 0.697 | 0.691 | 0.692 | 0.691 | 0.697 |