title: Letters to the editor: Birefringence as an index of ameboid movement.
mesh_terms: D000656:Amoeba / Q000502:physiology*; D001718:Birefringence; D004548:Elasticity; D008954:Models, Biological; D009068:Movement; D011523:Protoplasts; D011554:Pseudopodia; D014783:Viscosity