two culture phenotypes were studied in culture derived from consecutive generations in four cf families : ( 1 ) cystic fibrosis factor ( cff ) in the medium of short-term white blood cell cultures assayed by a modified oyster ciliary test and ( 2 ) the three characteristics of cultured skin fibroblasts ( metachromasia without alcianophilia at 0.3 m mgcl2 , cff in the culture medium and metabolic cooperation with normal fibroblasts ) .
C0007634
cell
C0016030
fibroblasts