title: An improved apparatus for perfusion fixation with automatic pressure control.
mesh_terms: D001331:Automation; D003102:Colloids; D006652:Histological Techniques; D008168:Lung; D008365:Manometry; D008722:Methods; D008854:Microscopy, Electron; D009997:Osmotic Pressure; D010477:Perfusion / Q000295:instrumentation; D011312:Pressure
chemical_list: D003102:Colloids