title: LOSS OF NEOPLASTIC PROPERTIES IN VITRO. I. OBSERVATIONS WITH S-180 CELL LINES.
mesh_terms: D000596:Amino Acids / Q000378:metabolism*; D000818:Animals; D002460:Cell Line; D006224:Cricetinae; D066298:In Vitro Techniques; D051379:Mice; D009369:Neoplasms; D009374:Neoplasms, Experimental; D012106:Research; D012107:Research Design; D012510:Sarcoma 180; D046509:Tissue Culture Techniques; D014364:Tryptophan
chemical_list: D000596:Amino Acids; D014364:Tryptophan
keywords: AMINO ACID METABOLISM; EXPERIMENTAL LAB STUDY; HAMSTERS; MICE; NEOPLASMS, EXPERIMENTAL; SARCOMA 180, CROCKER; TISSUE CULTURE; TRYPTOPHAN