@misc{indiciae7656d2c79122, title = {Platelet-derived growth factor: structural and functional aspects.}, author = {B Westermark and C H Heldin}, year = {1989}, doi = {10.1111/j.1365-2796.1989.tb00037.x}, url = {https://pubmed.ncbi.nlm.nih.gov/2918271/}, note = {Source identifier: 2918271} }