title: Studies on unidentified growth factors. 2. Progressin, a growth factor for chicks.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D001565:Benzoates / Q000494:pharmacology; D001835:Body Weight; D002364:Caseins; D002645:Chickens; D002934:Cinnamates / Q000494:pharmacology; D004032:Diet; D006128:Growth / Q000187:drug effects*; D006133:Growth Substances / Q000494:pharmacology*; D008099:Liver; D010455:Peptides; D010648:Phenylacetates / Q000494:pharmacology; D010936:Plant Extracts / Q000494:pharmacology; D013025:Glycine max; D014020:Tissue Extracts / Q000494:pharmacology; D015003:Yeasts
chemical_list: D000596:Amino Acids; D001565:Benzoates; D002364:Caseins; D002934:Cinnamates; D006133:Growth Substances; D010455:Peptides; D010648:Phenylacetates; D010936:Plant Extracts; D014020:Tissue Extracts; C009049:progressin