TY  - GEN
TI  - The "arrow" pattern
SN  - 0033-8419
PY  - 1981///1221
KW  - Brain
KW  - embryology
KW  - Female
KW  - Humans
KW  - Parietal Bone
KW  - Pregnancy
KW  - Ultrasonography
N1  - Publication Type: Letter
UR  - https://doi.org/10.1148/radiology.141.1.270-b
ER  -