viable and functional luteal cells were prepared , using a combination of hyaluronidase , collagenase , and a low concentration of trypsin in a dulbecco 's modified eagle medium containing 0.5 % bovine serum albumin and 3.3 mm ca++ , from corpora lutea taken from 2-day pregnant rats .
C0024156
luteal cells
C0010092
corpora lutea