ten (v/v) fetal bovine serum, penicillin (50 nits/ml), and streptomycin (50 units
10 (v/v) fetal bovine serum, penicillin (50 nits/ml), and streptomycin (50 units/ml) at 37 in an atmosphere of five CO2 in air. Cells were confirmed to be totally free of…