title: Functional verification of the Apollo urine transport system. AMRL-TR-67-166.
mesh_terms: D018504:Ecological Systems, Closed; D006801:Humans; D008297:Male; D008722:Methods; D011865:Radioisotope Dilution Technique; D013026:Space Flight; D014316:Tritium; D014556:Urine / Q000032:analysis*
chemical_list: D014316:Tritium