TY - RPRT TI - Changes in polyamine synthesis and concentrations during chick embryo development. AU - B Löwkvist AU - H Emanuelsson AU - O Heby PY - 1985 DO - 10.1002/jez.1402340307 UR - https://pubmed.ncbi.nlm.nih.gov/4056678/ ID - 4056678 ER -