TY  - RPRT
TI  - Comparative placental structure.
AU  - AC Enders
AU  - TN Blankenship
PY  - 1999
DO  - 10.1016/s0169-409x(99)00003-4
UR  - https://pubmed.ncbi.nlm.nih.gov/10837743/
ID  - 10837743
ER  -