 Micropuncture study of the mammalian urinary concentrating mechanism: evidence for the countercurrent hypothesis by Carl W. Gottschalk and Margaret Mylle

Verified locator: American Journal of Physiology196,927–936 (1959), DOI10.1152/ajplegacy.1959.196.4.927, PMID13637248. Abstract: micropuncture sites, equally hyperosmotic loop-bend/collecting-duct/vasa-recta fluid at the same medullary level, and countercurrent interpretation. Methods p928 (publisher indexed PDF): oil-filled Pyrex micropipettes and freezing-point-depression measurement of nanolitre samples. Publisher and PubMed differ in month metadata; year/pages/DOI agree.