TY  - RPRT
TI  - Placenta as an immunological barrier.
AU  - A E Beer
AU  - J O Sio
PY  - 1982
DO  - 10.1095/biolreprod26.1.15
UR  - https://pubmed.ncbi.nlm.nih.gov/6175353/
ID  - 6175353
ER  -