TY  - RPRT
TI  - Monochorionic "twins" in multiparous sows.
AU  - P H Brooks
AU  - D J Cole
PY  - 1978
DO  - 10.1136/vr.102.1.16
UR  - https://pubmed.ncbi.nlm.nih.gov/636205/
ID  - 636205
ER  -