title: The diameters of membrane vesicles fit in geometric series.
mesh_terms: D001699:Biometry; D002689:Chlamydia / Q000648:ultrastructure; D008433:Mathematics; D008563:Membrane Lipids; D008566:Membranes / Q000648:ultrastructure; D008954:Models, Biological; D014780:Viruses / Q000648:ultrastructure
chemical_list: D008563:Membrane Lipids