Level 1, level 2, level 3 obstetric sonography: I'll see your level and raise you one.
Filly
R A
RA
D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis*; D006300:Health Services Misuse; D006801:Humans; D011247:Pregnancy; D011296:Prenatal Diagnosis; D014463:Ultrasonography