Megakaryocyte interaction with the subendothelial extracellular matrix.
D000818:Animals; D001792:Blood Platelets / Q000648:ultrastructure; D002417:Cattle; D002448:Cell Adhesion; D002478:Cells, Cultured; D004727:Endothelium / Q000648:ultrastructure; D005109:Extracellular Matrix / Q000648:ultrastructure*; D006168:Guinea Pigs; D008533:Megakaryocytes / Q000648:ultrastructure*