Putrescine and related amines as growth factors for a mammalian cell line.
D000588:Amines / Q000494:pharmacology*; D003470:Culture Media; D046508:Culture Techniques; D008099:Liver; D012712:Serum Globulins / Q000494:pharmacology*; D013096:Spermine / Q000494:pharmacology*
D000588:Amines; D003470:Culture Media; D012712:Serum Globulins; D013096:Spermine