title: The megakaryocyte demarcation membrane (DM)--endoplasmic or superficial origin?
mesh_terms: D000818:Animals; D002462:Cell Membrane / Q000032:analysis; D003593:Cytoplasm; D004721:Endoplasmic Reticulum; D006168:Guinea Pigs; D006651:Histocytochemistry; D008055:Lipids / Q000302:isolation & purification; D008533:Megakaryocytes; D008854:Microscopy, Electron; D010772:Phosphotungstic Acid; D011506:Proteins / Q000302:isolation & purification; D013194:Staining and Labeling
chemical_list: D008055:Lipids; D011506:Proteins; D010772:Phosphotungstic Acid