00766naa a2200289 a 450000100080000000500110000800800410001910000210006024500710008126000090015265000090016165000170017065000170018765000140020465000140021865000220023265000140025465000100026865000130027865300280029165300140031965300170033370000190035070000180036970000170038777300720040420950052018-09-03       1973    bl uuuu     u00u1 u    #d1 aALEXANDER, D. P.  aImpermeability of the sheep placenta towards endogenous prolactin.  c1973  aEwes  aPermeability  aPharmacology  aPregnancy  aProlactin  aRadioimmunoassays  aReserpine  aSheep  aPlacenta  aMaternal-Fetal Exchange  aPerfusion  aTime Factors1 aBRITTON, H. G.1 aBUTTLE, H. L.1 aNIXON, D. A.  tResearch in Veterinary Sciencegv. 14, n. 2, p. 271-272, Mar. 1973.