TY  - RPRT
TI  - Placental structure: in a comparative aspect.
AU  - R Leiser
AU  - P Kaufmann
PY  - 1994
DO  - 10.1055/s-0029-1211275
UR  - https://pubmed.ncbi.nlm.nih.gov/7995333/
ID  - 7995333
ER  -