TY - RPRT TI - Bovine placentomes contain factors which decrease progesterone secretion. AU - M Shemesh AU - W Hansel AU - J F Strauss PY - 1983 DO - 10.1095/biolreprod29.4.856 UR - https://pubmed.ncbi.nlm.nih.gov/6640038/ ID - 6640038 ER -