TY  - RPRT
TI  - Monoamniotic twins.
AU  - K B Lawrenson
AU  - H S Roberts
PY  - 1971
DO  - 10.5694/j.1326-5377.1971.tb87478.x
UR  - https://pubmed.ncbi.nlm.nih.gov/5541596/
ID  - 5541596
ER  -