title: Short-range diffusion gradients.
mesh_terms: D001769:Blood; D002465:Cell Movement; D002469:Cell Separation; D002478:Cells, Cultured; D003470:Culture Media; D004058:Diffusion; D006133:Growth Substances; D008433:Mathematics; D009747:Nutritional Physiological Phenomena
chemical_list: D003470:Culture Media; D006133:Growth Substances