sodium hyaluronate from rooster comb , umbilical cord , bovine vitreous and a special commercial hyaluronic acid preparation , `` '' healonr '' '' have been fractionated at 4 degrees c on deae-sephacel columns using salt gradients from 0 leads to 0.4m nacl .
C0087000
sodium hyaluronate
C0020196
hyaluronic acid preparation