TY  - RPRT
TI  - Ultrasonography and external cephalic version at term.
AU  - W L Donald
AU  - J J Barton
PY  - 1990
DO  - 10.1016/0002-9378(90)90918-w
UR  - https://pubmed.ncbi.nlm.nih.gov/2193517/
ID  - 2193517
ER  -