TY - RPRT TI - Platelet-derived growth factor: structural and functional aspects. AU - B Westermark AU - C H Heldin PY - 1989 DO - 10.1111/j.1365-2796.1989.tb00037.x UR - https://pubmed.ncbi.nlm.nih.gov/2918271/ ID - 2918271 ER -