[Stimulation of embryonic rat cells in culture by calf-serum. IV. Isolation of an Active Protein and Partial Purification of a second Stimulating Fraction from fetal calf-serum]

MeSH terms

• Animals
• Blood Proteins / isolation & purification
• Blood Proteins / pharmacology*
• Cattle / immunology
• Cells, Cultured / drug effects*
• Culture Media
• Fetus
• Fibroblasts / drug effects
• Immune Sera / analysis
• Rats / embryology
• Stimulation, Chemical