@article{sage_bornstein_1982, 
  title={Endothelial cells from umbilical vein and a hemangioendothelioma secrete basement membrane largely to the exclusion of interstitial procollagens.}, 
  DOI={10.1161/01.atv.2.1.27}, 
  publisher={Ovid Technologies (Wolters Kluwer Health)}, 
  author={Sage and Bornstein}, 
  year={1982}
  }