Various factors are used to determine gestational (pregnancy) age via ultrasound: * Gestational sac size (3 dimensions, if possible) * Crown and rump length * Biparietal diameter (skull/head width) * Femur length
| Attributes | Values |
|---|---|
| rdfs:label |
|
| rdfs:comment |
|
| dcterms:subject | |
| abstract |
|