TY  - RPRT
TI  - Rectovaginal constriction in Jersey cattle: ultrastructural features.
AU  - D Troyer
AU  - N E Woollen
AU  - H W Leipold
PY  - 1988
UR  - https://pubmed.ncbi.nlm.nih.gov/3142172/
ID  - 3142172
ER  -