title: A simple rapid method for the quantitative separation of the extracellular fluid in frog muslces.
mesh_terms: D000818:Animals; D001001:Anura; D005110:Extracellular Space / Q000032:analysis*; D009132:Muscles / Q000032:analysis* / Q000033:anatomy & histology; D009929:Organ Size; D011894:Rana pipiens; D012964:Sodium / Q000032:analysis; D014461:Ultracentrifugation / Q000379:methods
chemical_list: D012964:Sodium