title: [Tubeless method of experimentally studying pH in the gastrointestinal tract].
mesh_terms: D000818:Animals; D004285:Dogs; D005745:Gastric Acidity Determination / Q000295:instrumentation*; D008722:Methods
vernacular_title: Bezzondovyĭ metod issledovaniia pH v zheludochno-kishechnom trakte v éksperimente.