TY  - RPRT
TI  - Selenium and lowered reproductive efficiency in pigs.
AU  - M J Edwards
AU  - W J Hartley
AU  - E A Hansen
PY  - 1977
DO  - 10.1111/j.1751-0813.1977.tb07946.x
UR  - https://pubmed.ncbi.nlm.nih.gov/612336/
ID  - 612336
ER  -