title: Occurrence of low density lipoprotein receptors within large pits on the surface of human fibroblasts as demonstrated by freeze-etching.
mesh_terms: D002462:Cell Membrane / Q000032:analysis* / Q000648:ultrastructure; D002478:Cells, Cultured; D005347:Fibroblasts; D005613:Freeze Etching; D008077:Lipoproteins, LDL / Q000378:metabolism*; D011955:Receptors, Drug / Q000032:analysis*
chemical_list: D008077:Lipoproteins, LDL; D011955:Receptors, Drug