TY  - RPRT
TI  - The placenta in multiple pregnancy: outstanding issues.
AU  - K Benirschke
AU  - E Masliah
PY  - 2001
DO  - 10.1071/rd01037
UR  - https://pubmed.ncbi.nlm.nih.gov/11999313/
ID  - 11999313
ER  -