title: Methods of localizing transport processes using micropuncture techniques--evidence for nephron heterogeneity.
mesh_terms: D000042:Absorption; D000818:Animals; D001692:Biological Transport; D001693:Biological Transport, Active; D007672:Kidney Cortex / Q000378:metabolism; D007679:Kidney Medulla / Q000378:metabolism*; D007684:Kidney Tubules / Q000378:metabolism; D008722:Methods; D009399:Nephrons / Q000378:metabolism*; D010710:Phosphates / Q000378:metabolism; D011188:Potassium / Q000378:metabolism
chemical_list: D010710:Phosphates; D011188:Potassium